There are several ways. One of them is chemoluminescence. This is the method for things like glow sticks and fireflies. In this case, a chemical reaction occurs which emits energy in the form of light. (In fireflies or other living organisms, it's sometimes called bioluminescence, but the underlying principle is the same: a chemical reaction is occuring.) Another possibility is phosphorescence. This is what's going on in most "glow-in-the-dark" paints and toys; you expose it to light for some period of time to "charge it up" and then it slowly releases that light. What's happening here is that the light energy causes electrons in the material to move to higher energy levels, storing the energy for a while until they later drop back down to the ground state and re-emit the light. The third possibility isn't really "in the dark" though it looks like it to us. This is fluorescence; it's similar to phosphorescence, except that the energy is re-emitted almost immediately but at a different wavelength (generally because it doesn't drop straight down to the original energy level, but makes a "stop" at an intermediate energy level in between). If the original light was of a frequency we can't see but the emitted light is of a color in the visible spectrum, then the object will appear to glow in the dark. This is what happens with "black light" paints; the ultraviolet light from the black light is emitted as visible light by the pigments in the paint.
Things glow in the dark as a thermochromic or floresent dye is used. The particles get energy from the light and emit the energy back as light. This light energy is weak so can only be seen in the dark.
That glow comes from photons of light energy that are released from electrons, within the glowing material, as they transition from higher energy levels to lower energy levels.
When light hits chemicals in the substance it retains light. Then when you turn off the light source the substance glows.
I wish I was a glowworm
A glowworm's never glum
Cause how can you be grumpy
When the sun shines out your bum!
It depends on what "stuff" you mean. Phosphorescence, fluorescence, luminescence, and incandescence are all possibilities.
blah, the glow in the dark has absorbed thelight
nn
it is essentially processed fertilser, water, and colored phosphorescent dye.
Bioluminescent/ phosphorescent plankton
-7 to 37
Powders and tablets:-)
non-bio
Yes they do.
Those inventions were so phosphorescent back then.
The Phosphorescent Rat was created on 1974-01-03.
Phosphorescent paint can be used to make stuff glow in the dark.
Several moments after exposure to an ultraviolet light, a phosphorescent mineral will glow.
Advantages: Phosphorescent materials are cheap and can be used in the form of a powder, gel, liquid or gas Disadvantages: But you cannot be sure how long its going to work and how bright it can be Do you know those things that glow in the dark(glow in the dark sticks) the material is probably phosphorescent light
Shining with a phosphoric light; luminous without sensible heat., A phosphorescent substance.
Several moments after exposure to an ultraviolet light, a phosphorescent mineral will glow.
My mother thought it was disgusting when fireflies ran into the windshield, but I thought the phosphorescent smear was magical. It reminded me of the phosphorescent colors on my black light posters back in the 70s.
I found the answer. Correct me if I'm wrong. Antacid powders are made of alkali metals and work by neutralizing the excess hydrochloic acid (HCl) in your stomach.
phosphorescent
phosphorescent means to give off light after radiation has hit it B. Persistent emission of light following exposure to and rremoval of incident radiation.