Contributors in Science
Science > General science 
typewriter
Science; General science
A machine that produces printed copy, character by character, as it is operated. Its essential parts are a keyboard, a set of raised characters or a thermal print head, an inked ...
grinding mill
Science; General science
A machine that reduces the size of particles of raw material fed into it. The size reduction may be to facilitate removal of valuable constituents from an ore or to prepare ...
hydraulic turbine
Science; General science
A machine which converts the energy of an elevated water supply into mechanical energy of a rotating shaft. Most old-style waterwheels utilized the weight effect of the water ...
biopolymer
Science; General science
A macromolecule derived from natural sources; also known as biological polymer. Nature has developed effective means for efficiently preparing and utilizing biopolymers. Some are ...
mushroom
Science; General science
A macroscopic fungus with a fruiting body (also known as a sporocarp). It has been estimated that over 1,500,000 species of fungi exist on the Earth; yet only about 69,000 species ...
anthophyllite
Science; General science
A magnesium-rich orthorhombic amphibole with perfect (210) cleavage and a color which varies from white to various shades of green and brown. It is a comparatively rare ...
magnetic lens
Science; General science
A magnetic field with axial symmetry capable of converging beams of charged particles of uniform velocity and of forming images of objects placed in the path of such beams. ...
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