(Includes answer to the question "Name ten sources of (visible) light")
All light originates in the emission of photons from electronic or nuclear processes, however those processes come in a variety of flavors, such as:
1. Thermal emission, consisting of "black body" radiation from hot objects such as incandescent light bulb filaments, and many other examples.
2. Molecular emission, such as that from hot gases in the flame of an oxyacetylene torch.
3. Phosphorescence, the delayed emission of light from a material after it has been stimulated, such as from the screen of a CRT tube after it is bombarded by electrons.
4. Fluorescence, the direct emission of light by some substances when they are stimulated by electrons or electric currents, such as an ordinary fluorescent light bulb.
5. Bioluminescence, such as the light emitted by Fireflies by means of chemical processes. Other examples include certain worms and fish.
6. Chemiluminescence, light emitted in chemical reactions other than in living things.
7. Sonoluminescence, light emission by the collapse of tiny bubbles in a fluid stimulated by sound waves.
8. Cerenkov or Cerenkov radiation, which is emitted when particles move faster than the speed of light through a medium (not faster than the speed of light in a vacuum).
9. Spontaneous emission, such as in a Light Emitting Diode (solid state) or Neon Bulb (Gaseous state) when stimulated by an electric current.
10. Stimulated emission, such as a laser.
11. Scintillation, a variation of fluorescence in which, for example, some substances emit light when struck by a subatomic particle.
12. Cyclotron radiation, which occurs when electrons are decelerated, whether in a straight line or by curving, as in a Cyclotron.
(Partially adapted from the entry on "Light" on Wikipedia.)
Some light sources are: fire, sun, stars, Milky Way, meteors, Supernova, lightning, Auroras, lava- they were natural light sources. Man-made: torch, light bulbs, light house, spotlight, TV, car lights (head, side), oil lamps. this is all i can think of today.
Another light source would be the sun and electricity,light is a form of energy!
The sun, fire, lightning, bio-luminescant animals (like fireflies)
Led Roadway Light
Sun light Moon light Candle light Fire light Torch light Star light Morning light Electric light
The only source of light in the solar system is the Sun.
yes it is it is a light sources don't you know that stupid
Man-made light sources... lamp, torch, LCD etc.
A light bulb is one example.
The sources that can give out their own light are "Light Sources" and the same opposite the sources which can not give out their own light are know as Non Light Sources .
Some examples of secondary light sources in a home include:lampsrecessed lightingnight lights
Some common sources of light are celestial light (stars/the sun), oil, gas, fire, and bioluminescent objects.
starsfireflieslightningfire
The Sun, Stars, Light Bulbs, Fires, Fluorescent Lamps
A television remote control is a source of infrared light.
Sun light Moon light Candle light Fire light Torch light Star light Morning light Electric light
The only source of light in the solar system is the Sun.
Daylight, sunlight and skylight or all natural sources of light.
We are not sources of light so we do not give off light.Light is given off by sources such as the Sun and Stars.Things that are not light sources reflect light into our eyes so we can see them.
The two sources of white light are: *visible light *The Sun.
no