What Color Light Is Most Visible to Motorists at Night?

I agree with the first guy on yellow. I would also recommend getting a brake light modulator. I have on on my Vino 125 and feel safer. No way to tell though, but I am liking it. If you want to stand out, you can also get underside NEONS or LED's to create a puddle of light under the scooter. It might be illegal in your area but I doubt cops would give you trouble. They know you are just trying to protect yourself. 96mpg.blogspot.com if you want to see my installation of the modulator to help with yours. Good luck. Stay safe.

What Color Light Is Most Visible to Motorists at Night? 1

1. Can I get any fluorescent light to start seedlings?

all you need are the T5 type bulbs so they arnt heinous on electric .. any regular fixture will do ... ... fixtures generally arnt cheap, the best deal going ive found is amazon with the single bulb 4' grow light with a stand for about 50$, but the problem is it wont cover much, a couple of thin trays is about all it will handle .. two of those together will be much better but now its at 100$ .. imo after using them for the first year is for me starting 4-6 trays of veggies i could use a 4' - 4 or 6 tube fixture to really cover the seedlings well so they arnt stretching .. just sharing my thoughts, but either way it wont be cheap unless you can come up with a multi tube T5 fixture taken out of a construction site or remodel job ... the tubes themselves can be found for 3-4$ ..

2. Can Total Internal Reflection be used to create free endless light sources?

No, light must escape for it to be considered a light source. For it to work as a power source you have to be able to extract power. Every time the light bounces it would lose energy. Yes.

What Color Light Is Most Visible to Motorists at Night? 2

3. When painting with oils, what is best way to paint light over dark without the colors mixing?

To paint a stroke over existing wet paint so the two do not mix you start with a thin layer of paint and go over that with a thicker layer. Lay the stroke down carefully and with forethought. Lay the paint down without stroking into the existing paint. Do this in one motion. Do not swish into the existing layer. Do not brush into the stroke more than once. Lay it down and leave it alone. If it needs refinement, do this lightly and carefully. Dip the brush back into the paint daub on your palette (load the brush) and add another stroke rather than attempting to stretch out the first stroke. Every time you stroke the brush it needs to have fresh paint, you need to have thought about what you are going to do with the loaded brush and you have to apply it to the canvas in one motion. This procedure also helps keep your mixtures clean. It is best to work from mid-values and finish with highlights and accents. Save your darkest darks and lightest lights for the end. This provides a more accurate representation of the values throughout the process. Working from dark to light as is commonly advocated literally leaves you painting in the dark until the very end. Then you have to go back and make adjustments to unify the painting and correct for false values. (Note to The Old Dog, Alla Prima is wet on wet painting.)

4. glowing light switch/electrical outlet?

Your description is a little confusing. I wonder if you are talking of wire-mould on wall wiring? Is the receptacle for the opener and a light switch in a double gang box on the wall? If it is, I am assuming the opener has a long cord that goes across the ceiling and down the wall to the receptacle/switch? The conduit may serve as the ground if it is steel, thats why there are only two wires inside of it. If it's plastic, there should be a green stranded wire inside. Normally there is a receptacle next to the opener to plug into. There are a couple of different wiring options for what you should have. One of them is: wall switch to light to receptacle There could be 2 black wires [or one blk, one red] , one wht wire, and a ground [which could be the conduit or on wall raceway] between the switch and light fixture box. One of the black wires is the load side for your light. Then the other black wire and one white wire [wire-nutted in the light fixture box] and ground between the light and opener receptacle. Black goes to load side of the receptacle outlet. This option shares one white wire as the neutral. If you have replaced the outlet with a new one, you might have a wire broken somewhere. Turn off power in the breaker box and check with a continuity tester. Also, carefully pull the cover off the breaker box and make sure the wire going to the breaker is a black wire. Another option is you have a light fixture with an outlet integrated into it. In this case, with only two wire from the switch to the light [and the opener plugs into the light], the light fixture-outlet combo might need to be replaced [about $3 at Lowes]. Good luck to you and be careful

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Are Most Solar Panels Black Because This Color Absorbs Light?
Are Most Solar Panels Black Because This Color Absorbs Light?
Yes.Black is color that can absorb heat,since solar panels collect energy from the sun by heat radiation, it only makes sense to have the solar panels dark in color1. The Best Milk Paints for Sleek Matte FinishesMilk paint is used when you are searching for a matte finish with a chalky appeal. It is a nontoxic mixture of casein and lime that has been used for centuries. Milk paint's finish is often unpredictable, yielding a worn look on most wood and similar surfaces. Though, traditionally, milk paint is packaged in powder form that simply requires the addition of water, companies have begun to premix and package the paint in cans, for consistent finishes. Ahead, find the best milk paints recommended by ARTnews. Like traditional milk paint, this product comes in powdered form. The bag will make a total of one gallon, pint, or quart of liquid (depending on the size purchased) and comes in a wide range of colors. Each color is created in small batches using earth pigments, to ensure its safety and reliability and tones that will not fade once painted. As such, it's completely safe for children's furniture and even toys. When first applied, this paint will create a somewhat uneven matte surface, but can be layered for a more uniform matte appeal. This paint has a matte finish with a brushed effect that gives the appearance of an old-fashioned milk paint, though it is premixed and comes packaged in a can. It is intended for interior use only and has a semitransparent finish with one coat and a more opaque look with an additional coat or two. The water-based paint is dry to the touch after 30-60 minutes and can be recoated in about an hour. Additionally, this milk paint takes well to sanding, for added distressing or texture, and does not require a topcoat. This milk paint is beloved by educators because it is made like the classic powdered paint, yet it is premixed. What is more, instead of coming in a cumbersome gallon can, this one is packaged in a 6.8-ounce bottle that is easy to reseal for later use. Ideal for raw wood and vintage pieces, this paint is best when brushed on slightly porous surfaces and dries in a semi-sheer coat. It can be layered to achieve a more opaque matte finish, however, and the small bottle actually lasts a lot longer than you might think. It is also safe for children, as it is a very low-VOC paint. Just like the most classic milk paint, this powdered option is made with only five ingredients: milk protein (casein), limestone, chalk, clay, and pigments for color, making it one of the least toxic and most safe paint options out there. It is best used on porous surfaces, and, when absorbed, it will never chip or fade. The bag will yield roughly one quart of liquid paint when mixed with equal parts water, which will allow you to paint up to 70 square feet of surface area. This milk paint is a little more durable than others, rated for both interior and exterior use. It is self-sealing and does not require a top coat and is produced in a range of 33 different colors, from raspberry pink to deep navy blue, bright white, and classic black. Just like classic powdered pink paint, this mixture is named for its matte finish and low luster. Applications of three coats of this paint are recommended to achieve desired opaque results, otherwise it paints on semi-sheer.2. Is it alright to colour switch many times while knitting a picture?Hmm -- that is an interesting means of looking at it. "whilst you knit, that the first stitch on the needle, becomes the last sew when you conclude that entire row." now not particularly the way in which i would state it, but i guess it's o. K. If that is how one can understand it. There are a number of one-of-a-kind methods to produce patterns making use of color for your blanket. One of them is "intarsia". That implies that you would work in blocks of colour, and whilst you come to a spot that requires a further color, you could possibly drop the one you have, and then pickup and knit with the brand new one, and so forth during the entire row. You knit the entire blanket row through row as invariably, handiest changing colour when required. This is very similar to the way in which your printer prints colour -- row by way of row, and alterations color as required. Hmm.. Marvel which came first?! That signifies that you will have to have a separate ball of yarn for each color change along the row. They do not must be a full ball -- if that you can estimate the quantity you need, that you would be able to wind off a smaller ball for that area. You have to work carefully, to preclude making a tangled mess, and it's viable to hold it neat if you are prepared. So, clearly, this is what you do: knit with colour A unless you come the stitches requiring a brand new color. You simply let colour A hold off the back, and begin up with color B. You need to twist A and B together so they interlock (clearer on the subsequent row) and simply knit as many stitches as required. When beginning a brand new color, go away a short tail with a purpose to be woven into the back afterward. Whilst you come to a spot where the color desires to change once more, do the same thing. Drop color B and start colour C. You may also must use colour A, but you are going to want a new ball of yarn than you used in the first section. It should mean you will have 14 or more balls throughout the row! There's one ball of yarn for each and every color alternate. When you come to the tip of the row, you turn and knit again. Once more, when it's time to change colors, drop the ancient color, and choose up the new one. I prefer to drop the ancient toward the left, and select up the brand new one from beneath it on the proper, in order that these colors link arms (twist round each and every different), and also you wo not have a hole showing later. You might proceed row by using row, following your graph sample to know when to alter colours. If you have just one stitch of a color within the center of a better colored section, that you can typically raise yarn over a few stitches, or you can do a reproduction stitch when you find yourself completed (like embroidery), for instance, eyes or noses. It can be not complicated to do (simply commonplace knitting), however you need to be particularly equipped, and work carefully and neatly. Stop particularly typically to untangle any yarns before they get an excessive amount of of a multitude to remedy later. It is relatively fun to do. You do ought to have a transparent graph written so you already know what color to make use of when, and be quite equipped. Search on the net for some graphics of men and women doing this (now that you already know what it's referred to as)3. This Instagram Video Proves That Red Concealer Is the Key to Flawless SkinFact: Color-correcting is confusing. I am a beauty editor with a lifetime of hardcore love and devotion to studying makeup, and I still have to take a second when faced with a concealer palette filled with 60 shades. And if you've got darker skin-as in, olive, golden, or almond shades that tend toward greenish undertones-color-correcting can be an even trickier endeavor, because most concealers were not made with your skin tone in mind. Because the makeup industry, well, let's just say it's come a long way but we are not quite there yet. But that's where red concealers come in. Yes, bright-red, lipstick-looking concealers, which are swiped over dark circles and dark patches to cancel out the green-ish, blue-ish undertones present in darker skin tones (it's all about that color wheel, yo). 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Though Noor's lighter skin tone would generally fall into the orange-y concealer category (we would recommend trying red only if you have a deeper skin tone), she still blends it out enough for her skin to look totally bright and even, with zero dark marks. It seriously is that easy. Of course, slathering red concealer on your skin is going to leave you with a pink-y peach cast, especially if you have a lighter skin tone or apply too much, which means I would recommend keeping your color-correcting super sheer and pairing it with a foundation and concealer. And if you are still totally lost on how to color-correct, watch this video from makeup artist Anchal, who uses an orange-y red concealer to color-correct her dark spots. Try it out on yourself and fall in loooove. This content is imported from YouTube. You may be able to find the same content in another format, or you may be able to find more information, at their web site. This content is created and maintained by a third party, and imported onto this page to help users provide their email addresses. You may be able to find more information about this and similar content at piano.io
Lighting in the Winter? Is That Normal? I Just Don't See It That Much.?
Lighting in the Winter? Is That Normal? I Just Don't See It That Much.?
Lighting in the winter? Is that normal? I just don't see it that much.?From the NSSL (National Severe Storms Labaoratory) FAQ Page www(dot)nssl(dot)noaa(dot)gov/ primer/lightning/ltg_faq(dot)shtml Does lightning happen during the winter? Lightning occurs less frequently in the winter because there is not as much instability and moisture in the atmosphere as there is in the summer. These two ingredients work together to make convective storms that can produce lightning. Without instability and moisture, strong thunderstorms are unlikely. During the winter, the land surface is cooler because there is not as much heating by the sun to warm it up. Without warm surface temperatures, the near-surface air would not rise in the atmosphere very far. Thus, the kinds of deep (8-15 km deep) thunderstorms that develop in the summertime would not develop. Warm air holds more water vapor. And, when water vapor condenses into liquid water cloud drops, latent heat is released which fuels the thunderstorm. So, warm, moist air near the surface (and the proper conditions aloft to give you lots of instability) can result in deep convection, which may produce lightning discharges. Clouds become electrified when strong updrafts (fueled by the instability and moisture) bring supercooled liquid water drops and ice crystals at temperatures less than freezing (0 deg C) together. In this environment, interactions between the ice crystals and supercooled water droplets produce electric charges. The exact mechanisms by which this charging happens remain unknown. The electrical charges build up until they are strong enough to overcome the resistance of the surrounding air. The breakdown of the electric fields produced by these charges is the lightning bolt. What is thundersnow? Although thunderstorms are less common in the winter, sometimes lightning can occur within snowstorms. Called thundersnow, relatively strong instability and abundant moisture may be found above the surface, such as above a warm front, rather than at the surface where it may be below freezing. Thundersnow is sometimes observed downstream of the Great Salt Lake and the Great Lakes during lake-effect snowstorms, too.— — — — — —question about cold, warm,occluded, and stationary fronts?If you are taking an exam, it is best to know what is written in the textbook (if you have one) or lecture notes (if you do not have them, maybe you can get them from someone else). Every teacher has their own way of explaining this. Yet there are fundamental things: Fronts are boundaries between cold & warm air masses. The term boundary in this sense means a zone of large temperature gradient - i.e., where the temperature changes a large amount over a rather small distance. "Large" & "small" in this case may mean 12 °F over a distance of 25 miles for example. Cold fronts are the leading edge of a colder air mass displacing a warmer one - typically moving eastward and equatorward. Sometimes it is more so a drier air mass than a colder one - but in each case it is the more *dense* air advancing. Showers or thundershowers often occur with these. Warm fronts are the leading edge of a warmer air mass replacing a colder one - typically moving poleward and a little eastward. Warm air is less dense than cooler air, so what really happens is the upper air flow is such that the colder air to a large exent recedes. This also can be more so a moist air mass replacing a dry one. Steady rain and fog often occur ahead of these. Stationary fronts do not move much - can linger over an area for days - but are still a boundary of sorts between a cool & dry air mass and a warm & moist one. We were on the cool side and it rained almost every day -not far enough on the cool side to be in the much drier air :( There are many more details which can be discussed, but do not want to bog you down or post too long here— — — — — —Heater blows Luke warm air, sometimes hot?Could be a clogged heater core, but it could also be an air vent control door that's not opening properly OR it could be a dirty cabin air filter. When you run the heater, is there hot air coming from your defrosters? Does your car HAVE a cabin air filter? I would check those before tearing into your heating system
Example Effect of Light Refraction?
Example Effect of Light Refraction?
Example Effect of Light Refraction?Refraction of Light as it passes from more dense to less dense mediums The bending of light as it passes from one medium to another is called refraction. The angle and wavelength at which the light enters a substance and the density of that substance determine how much the light is refracted. The refraction of light by atmospheric particles can result in a number of beautiful optical effects like halos, which are produced when sunlight (or moonlight) is refracted by the pencil-shaped ice crystals of cirrostratus clouds. When light passes from a more dense to a less dense substance, (for example passing from water into air), the light is refracted (or bent) away from the normal. The normal is a line perpendicular (forming a 90 degree angle) to the boundary between the two substances. The bending occurs because light travels more slowly in a denser medium. Another example of refraction is the dispersion of white light into its individual colors by a glass prism. As visible light exits the prism, it is refracted and separated into a magnificent display of colors. Photograph by: Susan Schwartzenberg (c)1997, The Exploratorium Each color from the original beam of light has its own particular wavelength (or color) and each wavelength is slowed differently by the glass. The amount of refraction increases as the wavelength of light decreases. Shorter wavelengths of light (violet and blue) are slowed more and consequently experience more bending than do the longer wavelengths (orange and red). -------------------------------------------------------------------------------- mechanisms Terms for using data resources. CD-ROM available. Credits and Acknowledgments for WW2010. Department of Atmospheric Sciences— — — — — —Is it possible for humans to see under the visible light spectrum, unaided?Not with our eyes. The rods and cones in the human eye will not react to photons that do not have enough energy, no matter how many of those photons arrive at the same time. This is the same idea as the photoelectric effect for which our pal Al banked a Nobel prize.The longest wavelength/least energetic light of the visible spectrum corresponds to the color red. Light that is just a tad longer in wavelength and smaller in energy is called infrared. Infrared light will not trigger the chemical reactions in your eyeu2019s rods and cones but it does produce warming and is how heat lamps used in the food service industry work. A narrowly focused beam of infrared light striking the human body will produce a localized warming sensation and that detection might be interpreted as a form of unaided seeing but seeing the infrared light emitted by life-forms and objects is not something that humans can do but maybe other species on Earth can see infrared, particularly predators might find it to be a survival advantage. Is it possible for humans to see under the visible light spectrum, unaided?— — — — — —Low latency short range high resolution visible light laser proximity sensor unit [closed]I would advise you to severely rethink your requirements. You appear to be trying for a laser-based Theremin. A few objections then arise.1) Millisecond response time. People cannot move their hands with millisecond control. Basic human reaction time is on the order of a tenth of a second or two.2) Spatial resolution. .001 mm. Are you kidding? That is 40 millionths of an inch! I defy you to control your hand to that sort of accuracy. Any system which will produce detectible results for that kind of motion will be wildly uncontrollable. 3) Visible light laser. (for the show effect, but mostly for better visual control) Are you making a light show or an instrument? You do understand, I hope, that an instrument is judged on the sounds it makes, rather than visual effects. Visual feedback in an acoustic device invites feedback conflict— — — — — —How's Visible light used in astronomical discoveries?they look thru telescopes, just like any astronomer would— — — — — —What has a higher frequency then visible light?short wavelength, with higher frequency---> ultraviolet, X-ray, gamma, cosmic longer wavelength lower frequency---> infrared, microwave, radio and tv waves, electric waves— — — — — —How do cell phone cameras change infrared light into visible light?A digital camera doesnu2019t turn *anything* into visible light. It converts light that it sees into RGB intensity values in a digital image, and thatu2019s all. Then the display on the phone converts those RGB intensity values into a visible-light image, since thatu2019s what it is designed to do. Now, it happens that all silicon sensors are sensitive to near-IR light. Unless the camera has an incredibly effective IR-blocking filter, some amount of IR gets through to the sensor. It has to pass through the RGB filters deposited on the sensor, but those filters are designed to provide good colour separation only for visible-light wavelengths, and tend to pass IR more freely. So the IR makes it to the silicon of the sensor, which then converts the IR to electrons that are completely indistinguishable from the electrons produced by visible light.The voltage at each pixel on the sensor is assumed to represent the brightness of visible red, green, or blue (depending on the filter colour at that pixel), and the de-mosaicing process interpolates this data to calculate R, G, and B at every pixel in the sensor. This gives the RGB data which is passed to the display. So, in summary: Silicon sensors are sensitive to near-IR light. Some amount of IR light tends to get into the sensor, where it is assumed to be more visible light and changes the RGB image. In daylight, the amount of IR is minor, and the IR doesnu2019t change the image much. But in the dark, or in the presence of a bright IR source, the IR may be the major light source and produce most of the image. The sensor canu2019t distinguish between visible and IR reaching it, so the resulting RGB always assumes that the output of the sensor is due to visible light - but in some circumstances itu2019s actually primarily IR.How do cell phone cameras change infrared light into visible light?.
I Have Bryant Furnace and the Led Light Does Not Come on, Would That Indicate a Bad Board?
I Have Bryant Furnace and the Led Light Does Not Come on, Would That Indicate a Bad Board?
Yes it could indicate a bad control board, but it could also indicate a faulty door switch not allowing power to the board to start with, or could be a problem with power supply to the furnace1. I have anight light in my bath room. It's an LED light if that matters. It is angeled toward the mirror.?is this really a ?2. Does 120 VAC LED light bulb have a built in rectifier?i imagine Sri Vidya Rajgopalan has given the excellent answer. even if the answer is very lengthy. enable me clarify you briefly. Ram equipped a Bridge rather of deliver because he idea, if contained in the conflict with Ravana extra military of Varana is needed then it's going to be consumer-friendly to carry reinforcement through a Bridge Than to deliver deliver3. been trying to find led light bulb for honda crv?SHORTY WHATS UP? NO LUCK HUH? HAVE YOU TRIED PEP BOYS YET ? HAVE YOU TAKEN THE OLD ONE OFF AND MATCHED OR TAKEN IT TO THE PARTS STORE SOME BODY GOTS IT HELL TRY GOOGLE POST YOUR ? THERE IM SURE YOU'LL FIND A LIL'LIGHT BULB THERE GOOD LUCK KEEP YOUR HEAD UP YOU'LL FIND IT BUT TRY PEPBOYS4. Amazon.ca Best Sellers: The most popular items in Learning & Education ToysLight-up Terrarium Kit for Kids with LED Light on Lid - Science Kits for Boys & Girls - Gardening Gifts for Children - Kids Toys - Create Your Own Customized Mini Garden in a Jar That Glows at Night5. I bought LED Light to go under my motorcycle, i know how to run it to my battery, but it just came with wires?You just need to add an on/off switch between pos. wire and the battery. Like Jeremiah J says, if you are not tech savy, find some one familiar with automotive electrical wiring6. 10000k led light strip and anemones?That light by itself is probably not enough for an anemone. Those are probably 1w leds which do not have the power to penetrate very deep through the water. It would help but if it is enough or not will depend on what other lighting you have with it.7. back led light on bumper. rite side not working but the light is lit and showing under the car?The internal lamp holder, mirror and support have popped out and hang somewhere. Have someone fix that, should be fairly easy. It may bring about a short-circuit, meaning a fuse would blow and that's about it. The only consequence would be another light (on the same side or diagonally opposite) will also go off. A simple/cheap fix. If the electrical system is in good shape, no fire risk. Depending on where you use the car - ticket risk if lights are off due to a short.8. How do you achieve this stairway 'chaser' effect with an LED light strip?What makes the light "run up the stairs" is the use of individually addressable LEDS. That means each LED on the strip has a microprocessor that can be called up and say "hey, you, turn on at this RGB value: 0x999999". That adds a bunch of complexity. Not least, the microprocessors that monitor the PIRs and sequence the LEDs in the direction being traveled. However, there's no end to the cool: the processor could roll pulsing light up or down the stairs... or it could even do rolling rainbows of color, like Boeing Dreamliner or something, because virtually all these "individually addressible LEDs" are RGB color type. It's there; the poster just has not unlocked it because the limiting factor is software (you have to write it). It also forces the installation to use 5 volts DC instead of 12/24 volts DC. This means the power supply must be heavier, and the wires must be much heavier. Parts list is: You can do the kaboodle on 12V or 24V, and so the wires get a lot smaller. You can drop the microprocessor altogether, and simply use 12/24 volt PIRs wired in parallel. (i.e. whichever PIR sees a customer turns the lights on, and the lights come on when either PIR asks for it, and the PIR auto-times out after a time.) You can also use simple, cheap 3528 monochrome LEDs in your choice of color temperature. Most 12 volt PIRS will happily run on 12V or 24V. So will dimmers. So you just get 12V or 24V LEDs to suit. Your parts list is:
The 3rd of February and March Will See the Lightweight Titles Up for Grabs From the WBA, WBC, IBF AN
The 3rd of February and March Will See the Lightweight Titles Up for Grabs From the WBA, WBC, IBF AN
The WBO title is meaningless1. where can i get biore lightweight pore minimizing moisturizer? i loved the sample i got in the mail and i wenttarget should have it. :D2. WBA Lightweight Title 1983 Ray Mancini vs Kenny Bogner who would have won?Bogner by split decision. I always thought Mancini was a bit overrated and did not hit nearly as hard as advertised3. Girls, what's a nice, affordable lightweight moisturizer for the legs? (With a gel-like feel to it?)?Ok, do not listen to people that tell you to use vegetable oil! If it is hot, just do the practical and safe thing: Sun Screen4. if aluminum is so lightweight , than why are aircraft not mde out it?You are a idiot. Most of the planes are made from aluminum. Cerbonfiber is starting to be used5. Lightweight OS to run virtual machines on?If there are no requirements other than virtualization, a so-called "bare-metal" hypervisor is a possible solution. They come with the minimal suite of software required to access network and storage and provide a basic console interface. The actual configuration and management is done remotely with a client or web interface.The most widely known bare-metal hypervisors are:They are all free, but offer varying hardware support. The most important thing to note is that Software RAID will not be supported, ever. This includes motherboards' FakeRAID.I've had the best performance using ESXi, on a regular machine.Update I forgot Hyper-V Server, naturally. It's also free (and probably supports software RAID), but I've had absolutely no luck getting the remote management tools to work. If you do not have Active Directory, I definitely advise you not to use Hyper-V Server. I also think Hyper-V is terrible in general, but that's just my opinion.6. What are your thoughts about boxer Vasyl Lomachenko moving up to lightweight for his next fight in 2018?Probably a good move.130 is fine, but the challenges and money are at 135 and beyond. He's not that small so can fill out to the weight, and carries a lot of power as well as amazing technique and skill, so should cope fine.The main targets would be Linares, which is winnable for Loma, and Mikey Garcia if he decides to drop back down 5lbs. Loma is amazing, but Garcia is also very good, Im not sure he would beat Garcia being totally honest as Garcia doesnt have the work rate but is probably a better 'pro' than Loma at this stage - but it would be an intriguing contest thats for sure7. I have a habit of balancing random, lightweight objects on my head. I often don't notice. Any idea why I do?Ask your parents, you may have picked up this habit from a relative. It sounds like a habit to me nothing more serious. I hang things on door knobs, and have done it since I was little. My mum told me that her blind uncle, whom I have never met, also hung things from the door handles all around the house, and knew where everything was hanging. I some how picked this habit up through my mother even though it is not her habit. Anyway if it's not worrying you to much you should keep this habit as it makes you very quirky, and that's desirable in my books.8. Suggestions for a lightweight anti-virus for a sloooooow PC?Please do NOT use Norton!! Use AVG or Avira (loose version) in your antivirus. Get Ad-mindful 2008 and Spybot Search and Destroy in your anti-spyware and adware! AVG- Comes with anti-spyware and adware, now. It additionally tests the internet sites that arise on Google/Yahoo, so that you could entry handiest secure webpages. Spybot Search and Destroy- It detects alterations to your laptop and allows for you to give up them. It additionally immunises your laptop towards detrimental web sites you may have had revel in with. Ad-mindful 2008- Everyone demands it ;)9. Lightweight CPU usage monitor? [closed]CPUMon is also a tiny application that can sit in the corner of your screen or in the system tray10. Lightweight Tile Roofing or Stone Coated Metal Roofing?Lightweight Tile11. Lightweight CSV viewer for Mac? [closed]Quick Look the file. There are two methods of doing so
Selecting the Best LED Light Manufacturer and Supplier: Factors to Consider
Selecting the Best LED Light Manufacturer and Supplier: Factors to Consider
Floodlights are important for lighting large areas like a stadium, a hangar, driveway, garden, or a tennis court. Selecting premium quality and energy efficient floodlights is essential to get proper illumination of the space that makes it comfortable for people to work, play or entertain themselves. Besides this, floodlights can be used to accentuate the beauty of the landscape or exteriors of a commercial property and enhance the security of the buildings.It is imperative to select the best floodlights for a general or special purpose that are factory certified, highly durable and caters to your lighting needs in a convenient way.Selecting LED floodlights and LED flood light housing can be the best way to get the most useful lighting solution as very few traditional lighting sources can beat the quality and efficacy of LED lights. Besides being highly energy efficient and eco-friendly lighting solution, they are long lasting and require least maintenance cost.You will find a plethora of LED lighting suppliers in the market. However, not all can provide you premium quality residential and commercial floodlights and accent lights at a discounted cost in the most convenient way. Selecting the best LED supplier requires that you consider the following factors for making the right choice:-1.Check out the experience level of the manufacturerWhen looking for a LED lights vendor or a company engaged in Die Cast Heat Sink manufacture you should check out that, the manufacturer has been producing LED lights of all sorts for over 5-10 years. You should also see that the manufacturer operates as OEM and ODM manufacturer that designs and manufactures a product as per the specifications and the products are rebranded for sale.2. Find out whether the manufacturer supplies ISO certified productsISO certification for LED lighting products manufacturer (ISO 9001: 2008) is essential to get assured of procuring the highest quality products. You should check that the manufacturer is an ISO certified company and it follows the highest international standards for quality management system.3. Check out that LED lights meet energy star compliance standardsWhen you get energy star certified LED light bulbs, floodlights and lighting fixtures then it means that you get the maximum value for money. These LED lights will not only save a considerable amount in energy bills but will also help you contribute your best in reducing the carbon footprint thereby saving the environment.4. Get suitable warranty coverage for your LED lightsBesides these factors, you should also look the warranty coverage that your supplier provides. This would ensure that your Led lighting products would be repaired or replaced when they are under the 3-5 year warranty period.Selecting quality floodlights and Flood Light Housing necessitates that you check out various manufacturers and suppliers and select the one that is extensively experienced and commands an enviable reputation in the market.SummarySelecting a reputed and experienced LED lights manufacturer and supplier is very important to get premium quality products at a competitive price. This article guides readers to consider some of the important factors that will act as a benchmark to differentiate the most suitable supplier from others·RELATED QUESTIONI didn't get Google Glass Explorer Edition. Is trying to learn Glass dev without the hardware a futile effort?No, you can still learn the fundamentals of Glass development without the hardware.There are three main approaches for accomplishing this:1) Visit the Mirror API documentation, get into the playground, and start hashing up some code. Download the PHP, Java, and Python library, whichever you're most comfortable with. Familiarize yourself with the jargon and converntions (timeline, bundles, menus, etc). Read the support documentation (second link below) to see how the Glass hardware actually functions. Build some apps to this specification.
What Are Same Good Books to Read?
What Are Same Good Books to Read?
The Torah (Old Testament in the Bible)It's very mythological, so it's similar to reading about the Gods of Olympus.The Torah consists of: rape, pillaging, sacrifice, natural disasters, inbreeding, prostitution, genocide, war, monarchical debacles, cults, rituals, damnation, sodomy, and sexuality.It's a good read.• Related QuestionsCopy Conditional Formatting 3-Color Scheme to another tabNo, it doesn't seem this is possible with VBA. But, here's a ridiculous work-around.Copy your cells from tab1 and paste them into microsoft wordThen copy that from word back to excel. Delete the values. Now you can format paint them to the other tab.Now, format paint.------How would you eloquently say doing something for the umpteenth/nth/n-tieth time?You could consider using "over and over (again)" if you want to emphasize the repetition of the action for unspecific times. Over and over means: Again and again: 'doing the same thing over and over again'Your example: She was reloading the gun over and over.Oxford Online Dictionary------Prove $e^x, e^2x, e^nx$ is linear independent on the vector space of $mathbbR to mathbbR$Since the $gamma_i$ (using your notation) can be negative, it does not suffice to state that $e^x > 0 ; forall xinmathbbR$.You can either use the matrix/determinant method, or, I believe, you can look at the power series of $e^x$ to do so------Running cutycapt from PHP on my Ubunty ServerCheck the error logs of Apache. When this shows: "cannot connect to x server" you'll need an X server running. This can be installed like this (install a light weight version of a GUI server):then change the php system command to run cutycapt in this X server:------Examples of common false beliefs in mathematicsI do not think anybody mentioned this example:If $M$ is a $C^k$-smooth manifold then the tangent space $T_pM$ is isomorphic to the space of derivations of germs (at $p$) of $C^k$-smooth functions on $M$. This holds for $kinfty$ but not otherwise------Blank Screen After Login on Windows 7We have a Windows 7 Thinkpad X200 tablet that does this all the time too. We updated the Lenovo power manager and a few other drivers and tweaked the power settings a bit. We did have a Corsair SSD in it. Does your system match any of these variables?.------Relation of $Q^2$ with the distance of interactionIn a sense it is based on the heisenberg uncertainty principle, HUPIn every interaction the four momentum transfer is made up of the three momentum transfer and the energy transfer. Looking at large p of the Q^2 transfer within the limits of the HUP the x gets smaller------Easy way to temporarily disable Check Engine light?Clear the codes with a scan tool. The light will stay out until/unless the code resets.Remove the bulb or LED that illuminates it. It's illegal to tamper with the OBDII system, including the MIL on the car and doing so to facilitate sale probably constitutes fraud.------some good books for me?Riding in cars with boys by Beverly D'onofrio. Its about a rebellious teenager who falls pregnant and has the baby (true story) and goes through a lot of struggles. It was made into a movie with Drew Barrymore, but as always the book is so much better.------Why does my DSL router show wireless activity when all my devices are turned off?A monitor mode packet trace would likely be required to know for sure. It could be a mixture of beacons (10 per second), probe responses to probe requests (scans) from other devices nearby (possibly a neighbor's devices), and multicast service advertisements, such as IPv6 router advertisements, mDNS, and UPnP------Seeking recommendations for driverless GPS loggers? closedHeres a product you might be interested in: http://www.solmeta.com/Product/show/id/14 It stores gps nmea format and also has a gyro sensor so you get kind of imu functinality. The only complaint i have is the frequency of data storing which is 1/second max.------VirtualBox not allowing a USB Device to be added duplicateYou need to install virtualbox guestadditions in virtualbox. You can download the ISO from here (select appropriate version of virtualbox, and download the guest additions ISO).Install the guest additions in virtualbox VM.Then refer this question, to add yourself to vboxusers group.This should solve the problem------What do you call an individual who tolerates criticism?Perhaps the word that you are looking for is Amenablehttp://www.oxforddictionaries.com/us/definition/american_english/amenable?searchDictCodeallOr, if you want to show the person in a positive light, you mean he (or she) is an Accepting person or individual.http://dictionary.reference.com/browse/accepting------How can anyone use a microcontroller which has only 384 bytes of program memory?One thing that I haven't seen mentioned: The microcontroller you mentioned is only $0.34 each in quantities of 100. So for cheap, mass-produced products, it can make sense to go to the extra coding trouble imposed by such a limited unit. The same might apply to size or power consumption.------Does skipping an ability check for a hazard needed to advance the dungeon remove player agency?As a player, what I hate is when I think I have agency, but I don't. If you're obvious that there's no agency at a certain point ("cut scene") then it's usually ok.If the failure doesn't mean anything, then it's false agency. Just use a cut scene.------What new series of books or stand alone book should I read?If you want lighthearted sci fi, try Ready Player One by Ernest Cline. Other options include Redshirts or The Android's Dream by John Scalzi. And since you mention American Gods, definitely read Gaiman's Neverwhere or Good Omens, which he co-wrote with Terry Pratchett. It's hilarious.------Can I use an HDRI for reflections only, and not have its light affect the scene?Or you can use the Is Glossy Ray input from the Light Path node.With this setup, your World color stays the same, but reflection rays show your HDRI.Color 1 is your world background, Color 2 is your HDRI.Using Using Light Path inputUsing solid grey World color------What are good books a Teenager should read?This may sound boring, but I would recommend a book like "Band of Brothers" or "Night" by Elie Wiesel. Most young people have no idea what WW2 was about or the Holocaust. These two books will give you a better appreciation for our veterans.------Thunderbird/Enigmail: problem with colorsYou are almost there. Just insert the code into your userChrome.css (not userContent.css) and also don't forget to add the dot at the beginning, as referenced in the link you provided.Thus, this should be in your userChrome.css.That works for me on my machine------Can watching too much tv or Reading books cause short sightedness.?it fairly is a not easy question. i like analyzing books, song is an element of my on an huge-unfold basis existence, television not plenty. So between analyzing a e book and listening to song, i'm going to choose for...... analyzing a e book! How approximately you?.------Shapes for an infinite animal?Since no one came up with that: give your creature a simple torus shape, like a donut. This body has no end, as required.You can select out specific positions for having a head or tail that extends from that torus, but basically it will have no "end"------UPDATED (APRIL 14): Design for Academia.seI have a thought regarding the up/down indicator. Since we spend most of our time grading, why not have a check mark for up, and an X for down. For an accepted answer (which used to have a check mark), we could instead use a gold star.------Can someone recommend a book for a picky reader?hey contacttry darren shans cirque du freak series, the are great and will change any opinions that you probably have about said vampire novels. the writing is good, and the characters are deep, the plot is unique.http://en.wikipedia.org/wiki/The_Saga_of_Darren_Shan------Is antumbra part of shadow darker than penumbra part of shadow?In the penumbral area, part of the disc of the moon obscures a section of the sun. In the antumbral area, the entire disc of the moon obscures a, logically, larger section of the sun. Therefore the antumbra cannot be brighter than the penumbra during the same event.------Grub menu (while booting) shows its GRUB2 though the version is 0.97Both grub & grub2 use the same grub install command, but it depends on which package you have installed. If you uninstalled grub-pc which is grub2 and installed grub you then have the old grub legacy.From your chroot.uninstall both grub legacy & grub2 reinstall grub2 and to sda.------How to make the pdf output of better print quality?You need to add usepackagemathptmx to use Times fonts. Here is the table that shows the default fonts in the LaTex installation. This video also shows you how to change the fonts to avoid the light print quality issue. https://www.youtube.com/watch?v21JqdJq5yeU.------Can light waves cause beats?A laser gyroscope detects 'beats' of light.In a laser gyro, laser light goes in two directions 'round a ring, clockwise and counterclockwise. If the gyro is rotating, one laser direction will be at a slightly different frequency than the other, and their interference will create a 'beat'.------How do I restore the original color scheme, icons, and theme?What you can do is reinstall MyUnity and open up the themes menu. There is a button to reset it to the defaults, but you can manually set the theme to "Ambiance" and the icon theme to "Ubuntu-Mono-Dark" and that should bring you back to the default 12.04 set-up------I am running out of books.?Here is a link to my Goodread's profile under Want to Read. You can also go to the Read or Currently Reading tabs to get more ideas. There's over 100 books in total. Hope it give you some ideas.http://www.goodreads.com/review/list/5871239?shelfto-read------Can you make pie crust from cookie dough?Spray pie plate, slice cookie dough about 1/2 inch, place on bottom and around sides just till toudhing, let soften, then press all together. Can anyone tell at what temperature to bake and for how long? All I remember is don't bake for too long till dough is crunchy------The word raised in Romans 9:17-18 and Exodus 9:16?Read Romans 9 in the light of Romans 2:4-11. Mercy is intended to lead to repentance, but in the case of Pharaoh, mercy hardened his heart. Exodus 8:15 When Pharaoh saw there was relief, however, he hardened his heart...When God relented and showed mercy, Pharaoh hardened his own heart------How do I completely disable automatic keyboard backlighting on Macbook Pro with OSX Lion?I had this exact problem you described on my MacBook Pro with macOS Sierra. What I did to solve it was:I'm not sure if all these steps are necessary since I cannot replicate the initial problem anymore, but I found the reboot to be necessary. Good luck------Recommended reading to better understand Unix/Linux internals closedTo get a sense of the why and what the kernel is meant to support, have a look at The Art of Unix Programming by Eric Raymond. It takes things at a fairly high, philosophical level, but it would go well with the nitty-gritty details of other books------Could space probe Voyager 1 or 2 reach Alpha Centauri?It doesn't look like they are going in the right direction at the moment, though it would take a little more work to see how the stars are moving and their gravitational perturbation on the the spacecrafts will behave.All coordinates in degrees, from this question and Wikipedia------Magento 2 - Admin 'Content' grids not showing (Fresh Magento Installation on MAC OS)The missing content is loaded in ajax, check your network tab and search for a request like mui/indexer/render.You should find this type of request :/mui/index/render/?namespaceproduct_listing&Do you have any JS error in your browser console ?------Why would a member of the lower class approve of his oppressors?Probably hope.Make them think that they could get into the upper class; take your inspiration from today's world ! Accordingly, tell them that your current upper class of course deserves it all and that you can also make it if you just worked as hard as they did.------How can I sharpen the light fall off for a rotating earth animation with 2 materials?In the tutorial, the "earth" has a lighter falloff. I think what might be allowable is to add a couple more lights in the scene, one a low-brightness hemisphere, and one a sort of blueish light. This, if applied right, could produce a similar result in an animation.------which is better: read the book, or the summary and analysis?For me, it would mostly depend on the book. However, in most cases, I fund myself pleasantly surprised when I actually read the book. I recommend giving it shot and if you just can't get yourself to focus or take interest, then go for the short version.------instruments you can make at homeWith some experimentation you could construct a set of plastic tubes like boomwhackers. These are great fun to play. Or you could just buy some - they're not that expensive. It depends whether it's the making of the instruments or the playing of them that you're focusing on.------Listing rideshare as a jobNot sure where you are based, but I don't see why you coudn't put that you worked for these companies. Is there something that i'm missing here? Clearly these jobs won't speak to your teaching abilities but will speak to your commitment and determination. Hope this helps. T
VW 2002 Beetle Warning Light?
VW 2002 Beetle Warning Light?
might be your heated rear screen1. A warning light on my 1990 Audi 90 looks like a bomb or round flask with an X through it. What is this for?Bulb failure2. Questions regarding the warning light color in a mobile vehicle?Arizona it is only amber for civilians3. heater not working and Gage engine warning light comes on and oily colored water in the expansion tank?The heater not working is a separate problem from engine warning light, they are NOT related... for 1) control links may be severed or heater matrix may be clogged up for 2) read fault codes4. why water sepator warning light comes on and off in my pick up?The light tells you you have water in the separator. There is not enough to connect the sensor on level ground, but when vehicle is rocking it does. Check your manual and see if it will dump the water automatically at a certain level or if you have to do it manually. I know some aftermarket separators are automatic, and have a heater in them that is thermostatically controlled to keep it from freezing5. What does it mean when my Volvo s40 brake warning light comes on my dash?The warning light means that there is a pressure differential between the two cylinders of the master cylinder. This can be a result of: 1. Low brake fluid; check and fill with the proper fluid type; you can get this at any parts store. Easy to do yourself. Fill both cylinder chambers to nearly overflowing. 2. A master cylinder rubber seal leak or a break line leak or a wheel cylinder leak. Check for wetness on the inside of each tire to see if it is a wheel cylinder, check for wetness around master cylinder lines for master cylinder leak. Leaking wheel cylinders or master cylinder needs to be serviced. Because it is seen when turning right, I feel that it can be a brake line leak on a line feeding one of the front wheels; check for wetness or a leak there. Needs to be fixed.6. My brake warning light comes on when I apply the brakes?Top up the brake reservoir with DOT 3 brake fluid. If the vehicle brakes normally keep driving it. If the car pulls or the brake pedal fades get the brakes fixed!.7. what does it mean when both brake and battery warning light are on?Both lights are for the same reason. The alternator is not charging and the ABS will disengage because of lack of enough power to work properly. Your battery may be fine, charge it, but the alternator needs replacing8. Why does brake warning light on Datsun B210 stay on for a period, then go off?Your break light sensor/switch is sticking. It's usually located on the floor of the vehicle behind the brake pedal. Spray some WD-40 on it and see if that helps it.9. Airbag Warning Light Won't Turn Off?air bag repair is a specialty in order to do safely and properly as there is a small explosive devise that employs the air bag. So you will need a trained person to do this. Fixing the light is not the issue, but why it has illuminated in the first place. Maybe the first step is to have the code read and go from there10. Oil buzzer and warning light comes on..?you might leak some oil somewhere that is what I am gussing11. Should I go to dealer or sam'club when the tire pressure warning light is on?Sam's Club is my suggestion12. 2013 Subaru Legacy--every warning light onYup. Why the ledd did you buy it? Used CVTs cost $1200-2500 $500 to install. Do NOT think you can repair it incrementally. Return the car if you can.(Disclaimer: I sell 2016 modern OBs and Legacys in the Boston area, and see MANY 2010-2014 era examples with ailing CVTs...so I've moved on to the more durable 2015 version.)My daughter's lovely 2013 Limited is starting to growl, so the search for a CVT will be on my agenda this Spring too. PITA....13. How long between petrol warning light coming on and car actually running out of petrol?Yea usually after the computers get below 20 miles left it is not accurate but i would say you have at least 40 miles left to drive but i would not push my luck to much with out having a good friend near by with a gas tank with him. Hope this is helpful
The Secret Libraries of History
The Secret Libraries of History
After news emerged about an underground reading room in Damascus, Fiona Macdonald discovers the places where writing has been hidden for centuries.Beneath the streets of a suburb of Damascus, rows of shelves hold books that have been rescued from bombed-out buildings. Over the past four years, during the siege of Darayya, volunteers have collected 14,000 books from shell-damaged homes. They are held in a location kept secret amid fears that it would be targeted by government and pro-Assad forces, and visitors have to dodge shells and bullets to reach the underground reading space.It’s been called Syria’s secret library, and many view it as a vital resource. “In a sense the library gave me back my life,” one regular user, Abdulbaset Alahmar, told the BBC. “I would say that just like the body needs food, the soul needs books.”Religious or political pressures have meant that books have been hidden throughout history – whether in secret caches or private collections. One of those is now known as ‘the Library Cave’.The Library CaveOn the edge of the Gobi Desert in China, part of a network of cave shrines at Dunhuang called the Thousand Buddha Grottoes, it was sealed for almost 1000 years. In 1900, Taoist monk Wang Yuanlu – an unofficial guardian of the caves – discovered the hidden door that led to a chamber filled with manuscripts dating from the fourth to the 11th Centuries.Provincial authorities showed little interest in the documents after Wang contacted them; but news of the cave spread, and Hungarian-born explorer Aurel Stein persuaded him to sell about 10,000 manuscripts. Delegations from France, Russia and Japan followed, and most of the ancient texts left the cave. According to The New Yorker, “By 1910, when the Chinese government ordered the remaining documents to be transferred to Beijing, only about a fifth of the original hoard remained.”Despite that, many of the original manuscripts can now be seen: an initiative to digitise the collection was launched in 1994. The International Dunhuang Project – led by the British Library, with partners worldwide – means that, as The New Yorker says, “Armchair archive-divers can now examine the earliest complete star chart in the world, read a prayer written in Hebrew by a merchant on his way from Babylon to China, inspect a painting of a Christian saint in the guise of a bodhisattva, examine a contract drawn up for the sale of a slave girl to cover a silk trader’s debt, or page through a book on divination written in Turkic runes.”No one knows why the cave was sealed: Stein argued that it was a way of storing manuscripts no longer used but too important to be thrown away, a kind of ‘sacred waste’, while French sinologist Paul Pelliot believed it happened in 1035, when the Xi Xia empire invaded Dunhuang. Chinese scholar Rong Xinjiang has suggested that the cave was closed off amid fears of an invasion by Islamic Karakhanids, which never occurred.Whatever the reason they were originally hidden, the cave’s contents have altered history since they were revealed just over a century ago. One of the Dunhuang documents, the Diamond Sutra, is a key Buddhist sacred work: according to the British Library, the copy in the cave dates back to 868 and is “the world's earliest complete survival of a dated printed book”.It’s a reminder that paper and printing did not originate in Europe. “Printing began as a form of prayer,” says The New Yorker, “the equivalent of turning a prayer wheel or slipping a note into the Western Wall in Jerusalem, but on an industrial scale.”A wing and a prayerThe location of another hidden stash of religious texts has been known since it was founded in 1612 – yet that hasn’t stopped it being the subject of conspiracy theories. The Vatican Secret Archives feature papal correspondences going back more than 1000 years, and appeared in Dan Brown’s Angels and Demons, as a Harvard ‘symbologist’ battled the Illuminati. The rumoured contents of the collection include alien skulls, documentation of the bloodline of Jesus and a time machine called the Chronovisor, built by a Benedictine monk so that he could go back in time and film Jesus’ crucifixion.In an attempt to dispel the myths, access has been opened up in recent years, and there was an exhibition of documents from the archives at the Capitoline Museums in Rome. Pope Leo XIII first allowed carefully vetted scholars to visit in 1881, and now many documents can be viewed by researchers – although browsing is prohibited. The word ‘secret’ in the name comes from the Latin ‘secretum’, which is closer to ‘private’; yet areas of the archives remain off-limits.Scholars aren’t allowed to look at any papal papers since 1939, when the controversial wartime Pontiff Pius XII became Pope, and a section of the archives relating to the personal affairs of cardinals from 1922 onwards can’t be accessed.Housed in a concrete bunker, part of a wing behind St Peter’s Basilica, the archives are protected by Swiss Guards and officers from the Vatican City’s own police force. They reinforce the power of the words held within. As well as correspondence between the Vatican and figures such as Mozart, Erasmus, Charlemagne, Voltaire and Adolf Hitler, there is King Henry VIII’s request to annul his marriage to Catherine of Aragon: when this was refused by Pope Clement VII, Henry divorced her and sparked Rome’s break with the Church of England. The archives also contain Pope Leo X’s 1521 decree excommunicating Martin Luther, a handwritten transcript of the trial against Galileo for heresy and a letter from Michelangelo complaining he hadn’t been paid for work on the Sistine Chapel.Another brick in the wallNot defended by armed guard but by centuries of forgetting, one collection in Old Cairo (Fustat), Egypt was left alone until a Romanian Jew recognised its significance. Jacob Saphir described the stash in an 1874 book – yet it wasn’t until 1896, when Scottish twin sisters Agnes Lewis and Margaret Gibson showed some of its manuscripts to fellow Cambridge University academic Solomon Schechter, that the trove became widely known.Hidden in a wall of the Ben Ezra synagogue were almost 280,000 Jewish manuscript fragments: what has come to be called the Cairo Genizah. According to Jewish law, no writings containing the name of God can be thrown away: those that have fallen out of use are stored in an area of a synagogue or cemetery until they can be buried. The repository is known as a genizah, which comes from the Hebrew originally meaning ‘to hide away’, and later known as an ‘archive’.For 1000 years, the Jewish community in Fustat deposited their texts in the sacred store. And the Cairo Genizah was left untouched. “Medieval Jews hardly wrote anything at all – whether personal letters or shopping lists – without referring to God,” says The New Yorker. As a result, “we have a frozen postbox of some two hundred and fifty thousand fragments composing an unparalleled archive of life in Egypt from the ninth to the nineteenth centuries… No other record as long or as full exists.”Ben Outhwaite, the head of genizah research at Cambridge, told The New Yorker how important the Cairo Genizah collection is for scholars. “It is not hyperbole to talk about it as having rewritten what we knew of the Jews, the Middle East, and the Mediterranean in the Middle Ages.”The fragments reveal that Jewish merchants collaborated with Christians and Muslims; that Jews were treated more tolerantly than previously assumed, and anti-Semitism was less common than thought. Their importance is increasingly being acknowledged. In 2013, the libraries of Oxford and Cambridge Universities joined together to raise funds to keep the collection intact – the first time they have worked together in this way.At the time, David Abulafia, author of The Great Sea: A Human History of the Mediterranean, said: “The Cairo Genizah documents are like a searchlight, illuminating dark corners of the history of the Mediterranean and shedding a bright light on the social, economic and religious life of the Jews not just of medieval Egypt but of lands far away. There is nothing to compare with them as source for the history of the 10th to 12th Centuries, anywhere in Europe or the Islamic world.”Between the linesIn 2013, the Dutch Medieval book historian Erik Kwakkel described ‘a remarkable discovery’ made by students in a class he taught at Leiden University. “While studentswere systematically going through the binding remains in the library,” he says in a blog post titled A Hidden Medieval Archive Surfaces, they found “132 notes, letters and receipts from an unidentified court in the Rhine region, jotted on little slips of paper. They were hidden inside the binding of a book printed in 1577”.Rather than being ‘sacred waste’ too important to throw away, the fragments were examples of rubbish recycled by bookbinders. “Recycling medieval written material was a frequent occurrence in the workshop of early-modern (as well as medieval) binders,” writes Kwakkel. “When a printed book from 1577 was to be fitted with its binding, the binder grabbed the 132 paper slips from his equivalent of a blue recycling bin and moulded them, likely wet, into cardboard boards.”The process means that words never intended for posterity can still be read today. “The slips are first of all remarkable simply because such small written objects rarely survive from medieval society… There are few places where such objects can slumber undisturbed for centuries,” he says. “This is when their long journey to our modern period started, as stowaways hitchhiking on 16th Century printed matter.”Including receipts, requests to servants and shopping lists, it’s a collection that’s rare for historians. “Messages like these bring us as close to real medieval society as you can get,” writes Kwakkel. “They are the medieval voices we normally don’t hear, that tell the story of what happened ‘on the ground’.”And it’s a collection that could be far bigger than first thought. Using an X-ray technology created to look beneath the surface of paintings and detect earlier stages of composition, Kwakkel has developed a way to see through fragile book bindings. In October 2015, he began scanning early printed books in Leiden University Library.“The new technique is amazing in that it shows us fragments – medieval text – that we could otherwise never see because they are hidden behind a layer of parchment or paper,” wrote Kwakkel in a blog post about his Hidden Library project. While the technology needs to be improved, it hints at a process that could reveal a secret library within a library. “We might be able to accessa hidden medieval ‘library’ if we were able to gain access to the thousands of manuscript fragments hidden in bindings.”If you would like to comment on this story or anything else you have seen on BBC Culture, head over to ourFacebookpage or message us onTwitter.And if you liked this story,sign up for the weekly bbc.com features newsletter, called “If You Only Read 6 Things This Week”. A handpicked selection of stories from BBC Future, Earth, Culture, Capital, Travel and Autos, delivered to your inbox every Friday.
What's the Best Way to Petition the City Against Street Light Cameras?
What's the Best Way to Petition the City Against Street Light Cameras?
bleet moan and complain all you like its the best way to catch red light jumpers and you were going too fast if you had to break so hard1. When you were a kid did you often break the street light rule?Well, it comes to a point where even though someone is breaking the law you still do not have the right to kill them if they have no intent of killing you first. Bad driving does not make an excuse for you to drive even worse. You have the responsibility to avoid an accident whenever possible, not just gun it and hope the other side does not die as a result. It could be your own death too. If police wo not keep order then perhaps it's time to grab attention in other ways. Put the camera in your car, but do not go out of your way to hit others. Vigilantism is going to only land you in jail, but do what you want. You can make videos and make sure people who can make a difference do see them. I fully understand your frustrations. I live in the Dallas area where people drive like lunatics and i get so mad, but I am not going to put my own life in even further jeopardy by going to extremes and ignoring others faults and arrogance in the name of taking law into my own hands. I go nuts when I hve to wait in line like everyone else in traffic then some clown decides to drive all the way around everyone in the curb lanes then expect everyone to just stop and let them in. The maddening part is they always do! It's the only time I tailgate to keep them from getting in front and I've gone as far as driving in both lanes half way into the curb and half way in the lane to keep them from cutting, but I wo not gun it to keep them from doing so. I wo not endanger them or others to make a statement. You could move even though you do not feel you should have to, but if nothing is done you might have to. Hitting others or simply ignoring the obvious will eventually get you killed2. i Just Shot a Street light would anything happen to me?You would be in the dark3. When you were a kid did you often break the street light rule?i was always a rule breaker, but my mother was ok with it4. explain whether prices are or are not determined in a free market?The prices , whether it is determined by the market, depends on the type of commodities. Some goods are better left to the market to determine its price, but some needs an interfering hand. For example, prices of house, stock market, handphone, TV are more welfar enhancing if we leave it to free market forces. However, goods such as street light, the cleanliness on the beach, the KTM services, low cost housing are better regulated partially or fully by authority, in order to protect the welfare of the needies. So it depends5. how to calculate power rating and energy consumptions for street light? ?first u hav to know which type of power level malaysia used 3 phase of 415V and single phase of 240V frequency used is 50 Hz u can calculate power consumed by using S=V/Z formula. Z, impedance value might be stated at the light pole. then P, power can be calculated as S cos 0.8 because malaysia only allow 0.8 lagging power factor. then u should times power with how many hours the light work to get that kWH units.6. Coincidence? This morning I prayed and we had a small Earthqake. When I got home..my street light was on but?Wow, you really think you are something dont you? For your uneducated mind, it all depends which line of power went out, which it looks your street didnt go out. That doesnt mean god did it7. All in One Solar Street Light Manufacturer with Best Price in IndiaAll In One Solar Street Lights All In One solar street light is a new-age form of lighting solution integrating solar panels, charge controller, LED light and battery. These lights are available in two varieties, with infrared motion sensors and without, as part of the unit. All In One solar street lights are becoming popular due to their compact design and multiple other advantages. Motion sensors help to adjust the LED brightness intelligently in All In One street lights. Infrared (IR) and passive infrared (PIR) motion sensors are used for motion sensed detection of emitted/reflected infrared energy. The All In One solar street lights with motion sensor switch on in the evening and after a time delay of 30 seconds, the lights automatically reduce their brightness to 20%. Motion sensor is capable of detecting infrared waves that radiate from moving objects, thereby electronically increasing the brightness of the lights. Once motion is detected, there is 100% brightness and if there is no motion detected in the area after the time delay, the light gets automatically adjusted to a dim mode of 20%. The biggest advantage of solar street lights with motion sensors is that they add a sense of security and safety to your property while providing better battery life. Features of All In One Solar Street Lights Controllers used in All In One solar street lights PWM or MPPT charge controllers are used in All In One solar street lights. PWM controller acts as a switch between the battery and solar panel. The battery is charged with constant 3-stage charging, i.e., bulk, float and absorb. Pulse width modulation or PWM is the technique to modulate the pulse width to change the voltage and frequency of energy from solar panel to charge the battery. One of the greatest pros of PWM controllers is that it helps to prevent overcharging while charging the battery. As for the cost, PWM controllers are less expensive compared to MPPT controllers. MPPT (maximum power point) controller offers an indirect connection between the battery and the solar panel. The DC/DC converter takes extra photovoltaic voltage and transforms this into additional current at lower voltage. MPPT controllers adjust the voltage to maintain the most efficient level of power. In cooler conditions, MPPT controllers are observed to be more effective than PWM controllers due to their ability to capture extra PV voltage. Solar panels used in All In One solar street lights Though both monocrystalline and polycrystalline solar panels are used in solar street lights, polycrystalline solar panels are most commonly used in All In One solar street lights due to their cost effectiveness. Since most of the All In One solar street lights use motion sensors, they do not require solar panels with more wattage. Batteries used in All In One solar street lights Lithium ion phosphate (LiFePO4) batteries are widely used in All In One solar street lights due to their multiple advantages. LiFePO4 batteries offer upper and lower voltage protection and longer lifespan. These batteries can operate in different temperature range and are maintenance free. LiFePo4 batteries are the perfect choice for All In One solar street lights due to their relatively small and light feature. Lithium-ion as well as lead acid batteries are also used in some All In One solar street lights. Light source used in All In One solar street light LED light source is used in as it consumes less energy and gives higher luminosity. Installation of All In One solar street lights Compared to integrated solar street lights, the installation of All In One solar street lights can be carried out easily. The All In One solar street light can be effortlessly mounted due to its compact size and also due to the fact that there are no wires or cables to connect. They can be installed either on a pole or on a wall. The pole should be fixed to a flat ground without inclination. The light fixture should be installed to the pole before erecting the pole. The pole should go at least 3 feet deep inside the ground. The basic cage must be secured to the ground using concrete. It is essential to place the poles at even widths to provide uniform brightness to the entire area. The poles must be placed in the right position and angle so that the panels get sufficient direct sunlight throughout the day. Since All In One solar street lights have dusk to dawn feature, they need very minimal maintenance once installed. Rain water washes away most of the dust and dirt off the solar panels; however, routine cleaning of the panels helps the efficiency of All In One solar street lights. The solar panels can be cleaned by wiping them with a soft cloth or spraying water with a jet spray. Occasionally, you may inspect the installation bracket and the mounting arm to look for any damage. The All In One solar street lights are automatic in its function. They are operated with infrared motion sensor which helps to detect movement in its field and illuminate the lights, thereby ensuring security. Also, the controller can be set to operate in a timer-based manner where in the lights operate in full brightness for the first four hours and then later, in lower light for rest of the time. With the motion sensor and dimming options, the All In One solar street lights tend to save energy, thereby guaranteeing longer life to the lighting fixture. No cable work or electric equipment is needed, so the installation/construction cost is lesser. No need of manual intervention after installation, so the management cost is lesser. The lights are powered solely by using solar energy and no conventional energy is used, so the operation cost is lesser. Installation is easier and faster and maintenance is very minimal. Compared to integrated solar street lights, All In One street lights are less expensive. Since All In One solar street light requires direct sunlight to give its full potential at night, it may not be able to meet requirement of the areas with insufficient sunlight. Since having shadows may obstruct the sunlight to fall onto the solar panels to charge them efficiently, installation sites may be limited. Initial investment to purchase All In One solar street light is high compared to traditional lighting system. However, the benefit of advantages is far beyond the shortcomings of disadvantages. With the technological advancement, All In One solar street lights will be more and more used in the coming future.
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