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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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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

Atomic line filter

Atomic line filter Faraday filter designed, built and photographed by Jonas Hedin for making daytime LIDAR measurements at Arecibo Observatory. An atomic line filter (ALF) is an advanced optical band-pass filter used in the physical science s for filtering electromagnetic radiation with precisi more

Proteasome

Proteasome Proteasomes are large protein complex es inside all eukaryote s and archaea , as well as in some bacteria . In eukaryotes, they are located in the nucleus and the cytoplasm .Peters JM, Franke WW, Kleinschmidt JA. (1994) Distinct 19S and 20S subcomplexes of the 26S proteasome and their more

Equipartition theorem

Equipartition theorem peptide . The jittery motion is random and complex, and the energy of any particular atom can fluctuate wildly. Nevertheless, the equipartition theorem allows the average kinetic energy of each atom to be computed, as well as the average potential energies of many vibrationa more

Exosome complex

Exosome complex below. The exosome complex (or PM/Scl complex, often just called the exosome) is a multi-protein complex , capable of degrading various types of RNA s. Exosome complexes can be found in both eukaryotic cells and archaea , while in bacteria a simpler complex called the degradosom more

Chemical elements