Browse Reference Articles
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Doppler effect
The Doppler effect, named after Christian Andreas Doppler, is the apparent change in frequency or wavelength of a wave that is perceived by an observer moving relative to the source of the waves. The ... > more -
Subatomic particle
A subatomic particle is a particle smaller than an atom: it may be elementary or composite. Particle physics and nuclear physics concern themselves with the study of these particles, their ... > more -
Albert Einstein
Albert Einstein (March 14, 1879 to April 18, 1955) was a German-born theoretical physicist widely regarded as the greatest scientist of the 20th century. He was the author of the general theory of ... > more -
Schrodinger's cat
Schrödinger's cat is a seemingly paradoxical thought experiment devised by Erwin Schrödinger that attempts to illustrate the incompleteness of an early interpretation of quantum mechanics ... > more
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