Gale Encyclopedia of Science
The Gale Encyclopedia of Science covers all major areas of science, engineering, technology, as well as mathematics and the medical and health sciences, while providing a comprehensive overview of current scientific knowledge and technology.
Section :
Oil Well Drilling
Oil well drilling Oil and natural gas has been found in geologic strata of Earth from the surface to depths exceeding 30,000 ft (9,144 m).
Magnetic Recording/Audiocassette
Magnetic recording/audiocassette Audiocassette tape recorders are widely used to record and play back music or speech .
Medical Genetics
Medical genetics Medical genetics is a multi-dimensional study of medically significant human genetic variation.
Metamorphism
Metamorphism is the process by which the structure and mineral content of rocks transform in response to changes in temperature , pressure , fluid content (gas or
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Mole-Rats
Mole-rats Mole-rats are small, fossorial rodents , which means they spend their entire lives underground in a sealed burrow system.
Organs and Organ Systems
Organs and organ systems In the human body an organ is composed of two or more different histological types of tissue that work together to carry out a complex
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Morphine
Morphine, C 17 H 19 NO 3 • H 2 O, is a narcotic analgesic drug used primarily in medicine for its pain killing properties.
Nerve Impulses and Conduction of Impulses
Nerve impulses and conduction of impulses In contrast to the endocrine system that achieves long-term control via chemical (hormonal) mechanisms, the nervous system
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Nitrogen Cycle
Nitrogen cycle Nitrogen is a critically important nutrient for organisms, being one of the most abundant elements in their tissues, and an integral component of many
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MyWire Reference Collection
Nitrogen Fixation
Nitrogen fixation Nitrogen fixation refers to the chemical conversion of nitrogen gas (dinitrogen, N 2 ) to some oxidized form, usually nitric oxide (NO) or
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Noise Pollution
Noise pollution As late as the 1950s, most of the sounds on this planet were probably still of natural origin rather than derived from technological sources.
Non-Euclidean Geometry
Non-Euclidean geometry Non-Euclidean geometry refers to certain types of geometry which differ from plane and solid geometry which dominated the realm of
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Non-Point Source
Non-point source Non-point sources refer to situations in which there are numerous, relatively small sources of emission of gases, metals, pesticides , nutrients
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Nonmetal
A nonmetal is a chemical element that generally does not conduct heat or electricity very well, is usually a solid or a gas at normal temperatures, and (for solids) is
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North America
The landmass occupied by the present-day countries of Canada, the United States, and the Republic of Mexico make up North America.
Novocain
Novocain is the trademark name for procaine hydrochloride (C 12 H 20 N 2 O 2 HCl).
