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chemeurope.com's Encyclopedia of Chemistry provides articles for 64,557 entries from chemistry, pharmaceutics and material sciences as well as related scientific disciplines.

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Action potential

Action potential . B. Actual recordings of action potentials are often distorted compared to the schematic view because of variations in electrophysiological techniques used to make the recording An action potential is a "spike" of positive and negative ionic discharge that travels along the membr more

Raney nickel

Raney nickel Raney nickel () is a solid catalyst composed of fine grains of a nickel -aluminium alloy , used in many industrial processes. It was developed in 1926 by American engineer Murray Raney Raney, Murray (1927). "Method of producing Finely Divided Nickel ". US Patent 1628190, issued 19 more

Speed of light

Speed of light :"Lightspeed" redirects here. For other uses, see Lightspeed (disambiguation) . :For other uses of "speed of light", see speed of light (disambiguation) The speed of light in a vacuum is an important physical constant denoted by the letter c for constant or the Latin word celerit more

Photon

Photon In physics , the photon is the elementary particle responsible for electromagnetic phenomena. It is the carrier of electromagnetic radiation of all wavelength s, including gamma ray s, X-ray s, ultraviolet light , visible light , infrared light , microwave s, and radio waves . The ph more

Xenon

Xenon Xenon ( in the UK, in the US) is a chemical element that has the symbol Xe and atomic number 54. A colorless, heavy, odorless noble gas , xenon occurs in the earth's atmosphere in trace amounts. Although generally unreactive, xenon can undergo a few chemical reaction s such as the forma more

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