When they do so, they have to get rid of some energy and do so by giving off a tiny packet of light called a photon. Depending on how much energy they get rid of, the photon appears as light of a particular color. See our article on light for a fuller explanation of how atoms ...
As the fire pumps energy into the iron, the iron atoms become "excited" and unstable, and their electrons absorb the energy briefly, then hurl it back out again in the form of light particles known as photons. Hotter things hurl out relatively more light of higher frequency and higher ...
The atoms in a standard silicon diode, for example, are arranged in such a way that the electron drops a relatively short distance. As a result, the photon's frequency is so low that it's invisible to the human eye – it's in the infrared portion of the light spectrum. This isn't...
How does radiation turn into light? How is dark matter created? How does an electron emit a photon of light? How did Isaac Newton discover the spectrum of light? How does light propagate in a medium? How do atoms create photons?
If atoms exist, why can't we see them with visible light? When electrons travel, do they produce and/or carry electricity? How does a van de graaff work? What happens to the settling velocity if the density of the particles increases?
which are the result of other colours of light — red, along with green or blue — overlapping in the sky. While the atoms and molecules are releasing the same colours of light they normally do in these situations, the combined wavelengths of ligh...
How do you recharge glow sticks? There is no way to recharge a glow stick. Lots More Information Related HowStuffWorks Articles How Light Works How Black Lights Work How Fluorescent Lamps Work How Television Works How Atoms Work What is the difference between a fluorescent light and a neon li...
Light Trespass: Your neighbors might know better than to hop over your fence in the middle of the night, but do they know enough not to leave all their lights on -- inside and out -- in anticipation of a late night out? That sort of scenario is what light trespass is all about, an...
How do MRIs work? MRI scans produce detailed images of the body’s internal structures, such as organs and tissue. They produce these images by using the magnetic properties of hydrogen atoms, which are found throughout your body due to their abundance in water and fat4. When your body is...
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...