What is "glow-in-the-dark" stuff made of and how does it work?
467638
Glow-in-the-dark stuff contains phosphor. \n\nI'd be bluffing like crazy if I tried to explain it.\n\nHere's a better link :)\n\nhttp://science.howstuffworks.com/question388.htm
672523
Jergen's natural glow. It smells wonderful and it will enhance your tan. Try it,I love it!
465942
I don't know but if you make one you can use those glow necklaces (hot glued on) in several rows to make the body glow...how cute would that be????
94323
The phosphors\n\nhttp://www.sylvania.com/BusinessProducts/MaterialsandComponents/LightingComponents/Phosphor/FluorescentLamps/\n\nhttp://www.lgchem.com/en_products/electromaterial/display/phosphors/pdp_flor.html\n\nHow the bulbs work\n\nhttp://home.howstuffworks.com/fluorescent-lamp2.htm\n\nhttp://nemesis.lonestar.org/reference/electricity/fluorescent/lamps.html
572928
Light shining on a properly created solar cell. A solar cell can consist of an impure (doped) silicon (usually with phosphorus) with metal wire laid on top of it and then covered in glass (for protection, perhaps it might help build up the heat, but I'm not sure). When the light's energy hits the silicon, it knocks free electrons (from the phosphorus mostly) and then the wires will pick it up. Howstuffworks is a great site for this sort of question.
1159565
'Spectral' indicating some kind of control based on light emission?  Where will the light energy come from? (It's dark inside people).\n\nThere are already delivery systems based on dissolution, is that what you mean?
35799
what????\nyour lampshade? how did that happen?
983924
Black lights don't work.  Think of how many halloween parties you were at that had one of those and there weren't splotches on the couch and chairs (or heaven forbid on the sheet the guy used to look like a ghost).\n\nYou need a 366nm UV lamp, not a 254 nm lamp.\n\n\nWhat about washing or disinfecting the furniture when you get it instead of buying something?  It would also be weird going into a store, asking them to turn the lights out and then using the lamp.  Plus you have to explain why you are looking for splooge.
1131958
There is a chemical called phosphorus that produces a faint glow when in contact with oxygen, but I wouldn't recommend it as its pure form is highly combustible.\n\nTheres also a naturally occuring chemical called luciferin. When digested by its enzyme, luciferase, it produces a glow.
28214
Regular light. It is not a lazer or any special kind of light, just "light". It is probably generated by a specialized piece of equipment, but it is just light - photons. It probably doesn't contain ultra violet light like sunlight, it is probably closer to artificially created light like that from a lightbulb.
518377
Regular (incandescent) bulbs do not emit UV light like fluorescents do. Firstly, the filament temperature is not high enough to permit it to cast UV light.\nSecondly, the glass envelope surrounding the filament is usually made of non-quartz glass which attenuates the UV light.\nThe mercury vapor in fluorescents when excited by electrons, produces + UV light which causes the coating on the inside of the glass envelope to fluoresce thereby producing light.\nBe aware that serious damage can occur to the retina of the eyes if they're so exposed to this light.
502744
Actually, the colour of the glow does not depend on the material filled in the discharge tube. Rather it depends on the material of the discharge tube. So if the discharge tube is made of glass, the glow is somewhat greenish
528556
Are you talking about rocks that glow in the dark?\nHere are some pictures of rocks that glow in the dark...\n\nhttp://www.worldofrockhounds.com/hackmanite.html  \nhttp://www.scienceattractions.com/minerals.htm  \nhttp://www.worldofrockhounds.com/calcite.html\n\nHere is a list of flourescent rocks. Try looking for them on the Internet.\nScheelite (fluorescent blue) \nHardystonite (fluorescent purple) \nAnglesite and cerussite (fluorescent orange) \nHalite (fluorescent red) \nSapphire (blue and red fluorescence) \nZircon (orange fluorescence) \nAdamite (lemon-yellow)
416885
magnesium.  Phosphorous is used on tracer rounds to make them glow.
674006
By tube lamps I will make the assumption you are talking about Neon tubes.  Generally, Neon tubes are a combination of Neon and Helium with a small amount of Mercury in them.  The inside of the class is coated with white phosphor.  \n\nThe basis of operation is a high voltage transformer is used to cause the Neon gas to rise in energy level to the point it forms a plasma.  This is kind of like a spark that causes  the neon to suddenly glow, the energy emitted by the Neon is then absorbed by the phosphorous and re-emitted as a blueish white light.\n\nTo get the process started requires a higher amount of current then is available from the transformer and in older lamps a capacitor is used as a starter.  This capacitor charges up and then provides the current to get the Neon to start to glow originally.\n\nGenerally, the Neon lamps will only rise to the energy level in the presence of this high voltage from the transformer; however, I have seen cases in which either lightning or High energy radio waves can raise the energy level enough to cause them to begin to glow at a low level.  Generally the wires that are connected to the ends act as antennas and external energy radiated can be enough to cause the Neon to glow.\n\nIn failing neon tubes sometimes a conducting track begins to form on the inside of the lamp moving the conductor ends closer together, if the capacitors are not discharged it is possible that you might see a glow a second or two after the power has been shut off.  The you have another case in which the tube is already failed in that the anodes in the ends of the lamp tubes have broken down and the Neon does not rise in level required to glow.  And though they look like the power is off it is still on only there is not enough power reaching the gas in the tube to cause it to glow.  However, due to random heating or metallic vapor in the tube it is possible that the tubes will start to glow once in a while.\n\nDave Cooke
818868
I suspect this refers to how flourescent light bulbs generate a quasi-continuous spectrum as opposed to the discrete emission lines like other self respecting plasma discharge tubes.  \n\nHere is a website that has several pages on Flourescent Lamps:\n\nhttp://home.howstuffworks.com/fluorescent-lamp.htm\n\nThe first two or three are the ones useful to you.  Also there are several links on the last page under More Great Links that will help you in your researches.  Happy hunting!\n\nBTW: This reeks of an intro science class lab write-up question.  TAs at help desks or profs during office hours can help a great deal more effectively than something like yahoo answers, if you want to truly understand.
73004
You could try going to the How Stuff Works web site. In addition to showing how something works, they also, for some items, provide links to info about how the item is created.\n\nOn the Science channel, a Discovery Network, there is a show called "How It's Made" which airs weekly. I've linked both sites below.