Disc

Disc

A pancake-shaped structure composed primarily of young and middle-aged stars, and having abundant gas and dust. Some old stars are also present. The disc surrounds the bulge in a spiral galaxy. The disc in the NASA / Amazing Space Glossary of Astronomy Terms Milky Way is 100,000 light-years across and 2,000 light-years thick.

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Industry/Domain: Physics
Category: Astronomy
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disc

Automotive; Automobile

May be spelled "disk." A flat dish-shaped item which may or may not have a center hole.

disc

Health care; Arthritis

A small, circular cushion positioned between two vertebrae in the spine. Each disc consists of two parts: a strong outer cover called the annulus fibrosis, and a “jelly filling” ...

disc

Telecommunications; General telecom

See diskette.

disc

Plants; Botany

A plate or rim of tissue, derived from the receptacle of a flower, occurring between whorls of floral parts.

disc

Energy; Natural gas

The flow control elemnt of a globe valve , check valve, or butterlfy valve.

disc

Metals; Aluminum

An electrostatic paint application shaped like a disc which atomizes paint utilizing centrifugal force off the edge of the disc.

black hole

Physics; Astronomy

An orbit in outer space that is so dense that its gravity will not let anything escape from it.

Brahe

Physics; Astronomy

Danish scientist who made accurate studies of the planets and stars before the telescope became commonly used.

astrophysics

Physics; Astronomy

The scientific study of what happened inside stars and galaxies and how objects in space move in relation to each other.

Foucault pendulum

Physics; Astronomy

A pendulum that was made by Jean Foucault in 1851 to show that the Earth is rotating.

escape velocity

Physics; Astronomy

The speed at which an object, such as a rocket, must travel in order to escape from a planet's pull of gravity.

rocket

Physics; Astronomy

A vehicle that has one or more engines that burn fuel without taking oxygen from the air.

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Industry/Domain: Animals Category: Fish

Great white shark

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