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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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Slate industry in Wales

Slate industry in Wales , Wales, about 1910. The slate industry in Wales began during the Roman period when slate was used to roof the fort at Segontium , now Caernarfon . The slate industry grew slowly until the early 18th century, then expanded rapidly until the late 19th century, at which t more

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

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

Metabolism

Metabolism adenosine triphosphate , a central intermediate in energy metabolism. Metabolism is the set of chemical reaction s that occur in living organism s in order to maintain life . These processes allow organisms to grow and reproduce, maintain their structures, and respond to their environme more

Anabolic steroid

Anabolic steroid , transporting 5α-dihydrotestosterone . Anabolic steroids, also known as anabolic-androgenic steroids or AAS, are a class of steroid hormone s related to the hormone testosterone . They increase protein synthesis within cells, which results in the buildup of cellular tissue (an more

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