Info behind glow in the dark?

Question

Task to be done history behind glow in dark

Answer 1

Glow sticks give off illumination as a by product of a chemical reaction called chemiluminescence (light from chemical reaction in difficult language). This is achieved by the mixing of two liquids that alone are uninteresting.

The liquid in the capsule inside the plastic housing of the glow stick is Hydrogen Peroxide. Same stuff that you get from Walgreens or CVS. If you’ve ever noticed how it bubbles on contact then you’ll understand why its the activating agent. When it mixes with the Cyalume it releases an Oxygen molecule that quickly forms Carbon Dioxide which in turn releases enough energy in the new bonds being broken and formed to excite the electrons in the dyes causing what you see as Glow. When the glow extinguishes you know that the chemical reaction is finished and that the dye has released enough photons (energy in the form of light) to be stable.

These are just excerpts from this blog that has great pictures and information on how glow works

http://www.thepartyfaq.com/2008/06/11/ho...

Answer 2

It started off with the discovery of phosphorus. Phosphorus burns when exposed to air, but it also glows in the dark. That's where the name came from (phos phoros, meaning light bringer). Chemicals that glow in the dark have since been termed phosphorescent.