General science

General science

A variety of science subjects concerning the fundamental knowledge about different aspects of our world and their underlying principles.

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General science

Inertial navigation system

Science; General science

A self-contained system that can automatically determine the position, velocity, and attitude of a moving vehicle for the purpose of directing its future course. Based on prior knowledge of time, ...

Horst

Science; General science

A segment of the Earth's crust, generally long as compared to its width, that has been upthrown relative to the adjacent rocks (see illus. ). Horsts range in size from those that have lengths and ...

A segment of a troughlike glaciated valley partly filled by an arm of the sea. It differs from other glaciated valleys only in the fact of submergence. The floors of many fiords are elongate basins ...

Rock burst

Science; General science

A seismic event that is caused by the mining of underground or surface openings in a high-stress environment. The Mine Safety and Health Administration (MSHA) defines a rock burst as "a sudden and ...

Nuclear quadrupole resonance

Science; General science

A selective absorption phenomenon observable in a wide variety of polycrystalline compounds containing nonspherical atomic nuclei when placed in a magnetic radio-frequency field. Nuclear quadrupole ...

Star

Science; General science

A self-luminous body that during its life generates (or will generate) energy and support by thermonuclear fusion.

Trogoniformes

Science; General science

A small order of birds that contains only the family Trogonidae. Thirty-seven species are found throughout the tropics; two species reach the southern border of the United States. The trogons and ...