zenit

zenit

The point of the celestial sphere directly overhead, 90 degrees above the horizon, for any point on earth; it is the point where a plumb line extended upward would intersect the celestial sphere.

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Industri / Domain: Astronomi
Kategori: Mars
Company: NASA
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Mars

Astronomi; Mars

Mars is the fourth planet from the Sun. Mars' diameter is 6,790 km and takes 687 days to orbit the Sun. Mars is named after the Roman god of war. In Eastern Asian cultures Mars is ...

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The invisible electromagnetic radiation beyond the violet end of the spectrum of visible light, of wavelengths ranging, roughly, from 4000 down to 400 angstroms.

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The configuration of a land surface, including its relief.

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The amount of matter in a body, which should not be confused with weight. The same object will have different weights in space and earth but the mass remains constant.

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The s. I. Unit of energy, work, or quantity of heat. It is the force of one newton acting over a distance of a meter.

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Astronomi; Mars

An ideal or imaginary body that is absolutely black when cold, but is a perfect absorber of radiation and at the same time a perfect radiator. Black body temperatures are used to ...

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Industri / Domain: Hewan Kategori: Ular

kobra

A highly venomous snake from the elapidae family native to Asia and Africa. When alarmed, a cobra raises its head and expands the skin of the neck to ...