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Flashlights

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Usually battery powered, flashlights are a portable means of creating artificial light. They allow a person safer navigation through darkened areas.
Wow, ID1177301194 put ANSWER in the answer box. Okay, well you should start with getting the materials. Materials 2 D cell batteries [use alkaline instead of heavy-duty (carbon-zinc) batteries] (2) 5" pieces of number 22 insulated copper bell wire with approximately 1" of insulation stripped o…
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Answer Go onto ebay or visit a hoby store another idea is to go to a website on how to build a flash light
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A tiny light bulb with a reflector is lit up with a battery. The switch connects the electric circuit; the power flows through the wire and the bulb lights up.Current through resistive filament of globe produces heat and light.Well first there's these two batteries inside it, then there's a wire ins…
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im trying to figure the same questin out!
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very well There is a small generator that charges up a battery. Mine shines fairly brightly with a good charge. you have to rewind it everynow and then but winding is free and very easy. hey when you think about it you burn calories not money.
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A dynamo flashlight works by producing its own electricity. The flashlight has a crank that is turned by the operator. The crank runs a small generator inside that produces enough electric to run the flashlight.
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Answer Two things, either increase the voltage by adding another battery (to increase current in the coil), or increase the number of turns in the coil. We're assuming you wound your coil around some nice ferromagnetic material and are using that for a core.
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The question is meaningless, since nothing moves at c. If you are going close to c, however, you will observe all photons moving at c. Anything that uses the Electomagnetic field travels at c. Radio waves are an everyday example of this. If you were to travel at c, time would cease to exist and you …
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Invented in Germany in 1887, the world's first flashlight consisted of a mixture of magnesium, potassium chlorate and antimony sulphide. when ignited, the "blitzlichpulver" (flashlight powder) burned quickly and brightly, creating a pure white light. The downside however, was that the dense white s…
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So you can see stuff in the dark. also could use a warning light SOS, strobe to blind a man in seconds.
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Some lights and torches have a shiny back in order to reflect the light better.
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It was invented by Conrad Hubert in 1902.
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No aliens are known, in actual scientific fact, to even exist, let alone be on Earth with any weapons! And I am not aware of any actual law against using a flashlight at a UFO, either. -------------------------- Since the Aliens use light equiped weapons they might take it as a sign of hostility. …
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in inventins flashlights
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The HERO-LED COMPANY makes high quality led flashlights. LUMISTAR is their own flashlight brand name.But there is a difference with other "Lumistar flashlights". Some people say lumistar flashlights, that means the led bulb is made by the LumiLEDs Inc, PHILIPS. But the HERO-LED COMPANY has a brand n…
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A flashlight has a power source (usually ordinary batteries), a light source of some sort (a light bulb or LED, for example), and some electrical wiring to connect them, with a switch to turn it on and off. The power source makes the light source give off light.
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Answer i'm not very sure, but i know it has magnets. as for zinc, you will have to see if someone else answers it. Yeah...;.
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connor jasper
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To find a better alternative for lanterns
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duracell is the best one you jackass Edit: No Rayovac is. Know your facts before you call someone a jackass. you r one
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The battery uses chemical energy to produce electrical energy,
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The origin is the fact that early batteries were so weak and the current draw of the lamp was very high. So could only turn the flashlight on for an instant before the batteries would wear out....hence flash of light. Who says flashlights can't flash?! Mine flashes. It's true. There's a "flash" but…
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For a normal battery,for example,AA,AAA,CR123A,CR2 it can just work alittle time and not steady. But for charging batteries,it is steady and can be used fora long time,for a normal 18650 battery,with 70 LM, it can be used for 2-3 hours the LED flashlight is excellent,here is an experience i can sh…
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You have + and - on batteries, the polarities have to be in the same direction or the current won't flow.
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There are many manufacturers in the US producing Tactical Flaslights. Some of them are : 1. Arc : Arc Flashlights manufacture LED lights and produce 3 basic lines such as Arc-AAA, Arc-AA and the Arc-LS. 2. Inova : is another producer of Flashlights which produce Handheld lighting equipment driven …
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A LASER, or Light Amplification by Simulated Emission of Radiation, and is made by causing a particular substance to emit photons, almost all of which are one wavelength. A flashlight, however, uses a light bulb, which emits light due to the filaments, and will spread out. Both, however, are forms o…
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Shining a flashlight on the surface of the crystal causes them to appear shiny or sparkly. Depending on the atoms involved in putting them together, they can bounce off the outside surface.
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there are three reasons that cause the flashlight non 1. battery is out of power 2. the tmeperature of bulb is too height to cause short circuit 3. soaking
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in new amsterdam
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You cant get a flashlight but you can get a glowstick (in the village well on Early Poptropica).
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no they were crop cicles,they bent the stalks,besides you could feel the ships.
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Heat to make the filament glow white hot and emit light (electromagnetic radiation).
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It's in Woodside Apartment. It's in room 205. it'll be dark, keep walking until James looks into a huge spacey kind of room. Go there and there will be a dummy. Grab the flashlight and then fight the mannequin. Hope this helps!
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batteries in a car is bigger and cause exploions and flash light dont they bring light to the flashligt
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oh, your real bright. :P hmmm.... i dunno...maybe you should: unscrew where its round.. and put thenew batteries where the old ones are.... :) WELL... THAT WAS EASY!!!!!! doi!!!!
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Shining a flashlight at night will annoy nocturnal animals. Bright light hurts the eyes, and also ruins the night vision so that it is hard to see in the dark afterwards. That will annoy anyone. Bright lights also scare animals sometimes, because they don't understand what they are. This is why many…
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The English word for "Flashlight" is "Torch". As well, prior to electricity or battery operated flashlights, any flaming illumination was called a "torch", referring to making a fire on the end of a long stick (as seen in movies and still used in some undeveloped areas).
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I Really Have No Idea I Just Wanted To Anwser A Question
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Typically a concave parabolic mirror with a metallic reflector.
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Nothing and blondes are NOT DUMB
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To illuminate a dark area so that you can see what you are doing or where you are going
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Yes it is possible to make an acid battery using the acid in a lemon. (you would need allot of lemon batteries to light a flashlight bulb though - try using a diode light bulb) For more information on how to do this look in the link I will place below.
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the flashlight is in the horse stable where the horses get washed
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They don't. Car batteries produce 100's of amps of current. a 1.5Volt flash light battery produces milli-amps at best.
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Well, you won't find this on the Brinkmann website customer support site. I've seen bad websites, but this one is about as helpful as a empty gun in a zombie raid, especially if you have an older flashlight that uses the CR123 batteries. If you can get to the bulb though and you are lucky enough to …
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duracell obv.
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Because the amount of bending is too small for your eye/brain system to detect. During typical conditions of atmospheric refractivity gradient, a horizontal beam of visible light can be expected to refract vertically by about 14 feet in 10 miles, by a little less than 2 inches in one mile, and by…
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It is amazing!!!!
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Horses are sensitive to objects that move to fast or things that are new to them. If you move the flashlight around like a wildman(woman) the horse will get spooked. If the horse gets scared just looking at the flashlight, lay them around his stall or where ever you can put it where they'll see it. …
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When you shine a flashlight at a mirror it proves that you are able to turn the flashlight on. The reflection of that light can be used to demonstrate some basic principles of optics, such as that the angle of incidence equals the angle of reflection. It proves that the flashlight is in working or…
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By there positive and negative connectors and there acid.
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Car batteries will make a larger explosion than flashlight batteries would.
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A laser is L ight A mplification by S imulated E mission of R adiation a flashlight is pretty much a lightbulb that in some cases with the design of it can be amplified They're both alike as they both consist of photons. They're different because the laser only emits one wavelength, while a flashlig…
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It was invented after Edison came up with the lighting
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It weighs about 10 ounces
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he wanted to lighten his load
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flash light fish eat things like krill, shrimp and small fish.
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This was taken from eHow. Things You'll Need 9-volt battery Christmas-tree light Electrical tape 1 Remove the base from the tree light. You do this by gently pulling the plastic base away from the light bulb. The base will slip off with a little force. You can buy single decorative lights at any hol…
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The formula you are looking for is I = E/R. Amps = Voltage/Resistance. Put in some values and you will find the answer.
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Flashlight: electrical energy -> radiant energy Battery: chemical energy -> electrical energy Toaster: electrical energy -> heat energy Motor: electrical energy -> kinetic energy
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If on your paper your answers are point, ray, line segment, or plane i think it will be Plane
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you have to get the police marveric, then press r3, or l3 i dont remember
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To see in a dark or dim lit area.
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Light Energy. Remember, E=mc squared!Light Energy.... That is in regular flashlights. In L.E.D Flashlights, plasma is mixed with This energy source. That's what makes them so bright! :)
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Duck eggs are harder than most chicken eggs because of the darker pigment on the shell, but it is possible to see some movement and veins in most duck eggs.
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An LED flashlight produces light in the same as any other LED light bulb. An LED light source is actually a special kind of chip called a semiconductor. As current is passed directly over the positively and negatively charged sides of the semiconducting chip, the electrons emit photons, or light. Ov…
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There are very many of these, some come in kits and others you can buy separately The real question is how much you want to spend. If you don't feel like spending allot I would suggest this gun (it comes with a flashlight and laser): http://www.airsplat.com/Items/AR-FH-XM8.htm If you want a nicer …
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Poplarville, MS
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yes, but , you ned to be in a very dark room. What I do though ,, is get any kind of lamp with a 75 w or higher bulb. Then I get tin foil and wrap it around the bulb and make an upside down funnel shape at the top and then flare it out to where you could lay an egg on top of it and it would hold it.…
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It's an example of a dry cell battery.
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Because the batteries weaken or the electrical connection at some point falters.or may be they're driven hard and not properly protected from excessive heat accumulation.
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When you aim your flashlight at the sky, some of the light is scattered by dust or water vapor in the air. If you can see the beam, you're seeing SCATTERED light that has been reflected back to your eyes. The beam of a flashlight isn't "collimated" - the light isn't focused into a very narrow beam.…
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Yes, but not as advanced as the ones we have today.
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They close at c, the speed of light. From the frame of reference of the two flashlights, the beams leave at c, travel at c and arrive in the middle at t= d/v (time = distance over velocity--in this case v=c, so t=d/c). If you try to measure the close rate from the frame of reference of either wave …
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You can only see a beam of light if there are particles around it.So say there was a man standing under a street light, and the world aroundhim was foggy, you could then see the beam of light coming from the streetlight. And its the same principal with any luminous object.If there's no particle arou…
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you can change the nicad batteries for nimh without any problems, the charging will take longer as the capacity of the nimh batteries will be much higher than the nicad batteries.
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A bar magnet moves back and forth through a coil. Moving a conductor through a magnetic field (or vice versa) generates a flow of electrons. The electrons are used to charge a capacitor, and the saved charge can be released gradually to power the flashlight bulb.
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Electrical energy produced by releasing the chemical energy in a battery.
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If the flashlight has been on non-stop, a little over 4 hours.
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because the reflected light would spread out over a wide area if convex mirrors were used, whereas concave mirrors focus these reflected light rays into a beam, which give flash lights and headlights their unique characteristic.
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About 10-15 hours good quality flashlight. Cheap flashlight, maybe 8 hours.
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the sap or rosin came to the surface and dried to spheres that reflect their golden color.
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a light bulb, some batteries, and smoothing u call a switch
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A ultrasound is exacty how it sounds. It sends out waves of sounds that bounces around your stomach and bumps into matter which then turns around and produces a picture for you. A laser light/flash light is used to light up space and is measured in sight not sound. If you stick a flashlight/laser l…
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Yes. Most flashlights have a series circuit involving a battery, a switch, and a bulb. More complex variants might have two bulbs in parallel, two or more bulbs on two switches, etc. but the basic principle is a series circuit - turn the switch on and the bulb illuminates.
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Chemical energy into light energy more specificallyi.e. dry cell converts chemical energy into electrical energy flashlight converts electrical energy into light energy
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Laser light is different in many ways. These are the biggies. a) Laser light is almost monochromatic. Because it is created by exciting a specific substance to emit photons, the light emitted by the source is almost all one specific wavelength. The light from a flashlight contains all of the colors…
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