Is synchrotron light coherent? How is alpha radiation created? Explain how you can create neon. How does a synchrotron particle accelerator work? How was dark matter discovered? How do lenses refract light? How does an atom emit a photon?
An atomic clock is a clock that uses the resonance frequencies of atoms as its resonator. Basically atoms can be seen to resonate or “vibrate” as they absorb or emit energy. The electrons in all elements exist at different energy levels (it can help to conceptualise an atom as a positive...
What color light is transmitted through a piece of blue glass? How do semiconductor lasers work? How does proton emission work? How does an excimer laser work? How are reflection and refraction manifested in sound? How does an atom emit a photon?
They're perfect as safety lights because they're portable, cheap and they emit a ghostly glow. Light sticks, as some people call them, are also extremely popular on the rave scene (as are light necklaces, light glasses and light rope). They even make an ideal lamp for SCUBA divers and...
Phosphors are substances that give off light -- or fluoresce -- when they are exposed to light. When a photon hits a phosphor atom, one of the phosphor's electrons jumps to a higher energy level, causing the atom to vibrate and create heat. When the electron falls back to its normal ...
How Can a Diode Produce Light? Light is a form of energy that can be released by an atom. It's made up of many small particle-like packets that have energy and momentum but no mass. These particles, called photons, are the most basic units of light. Photons are released as a result...
They're perfect as safety lights because they're portable, cheap and they emit a ghostly glow. Light sticks, as some people call them, are also extremely popular on the rave scene (as are light necklaces, light glasses and light rope). They even make an ideal lamp for SCUBA divers and...
Light is a form of energy that can be released by an atom. It is made up of many small particle-like packets that have energy and momentum but no mass. These particles, called light photons, are the most basic units of light. (For more information, see How Light Works.) Atoms release...
In current electricity, electric charge is carried by electrons and protons within an atom. Protons have positive (+) charge, while electrons (-) have negative charge. Since it is an electric charge in motion, form a sudden discharge such as a lightning bolt or a spark between your finger ...
Some types of holograms use lasers that produce different colors of light as well. Depending on the type of laser you're using, you may also need a shutter to control the exposure. Lenses: Holography is often referred to as "lensless photography," but holography does require lenses. However...