Mars

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 also known as the 'Fire Star. '

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ultravioletno zračenje

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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 ...

topografija

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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.

crno tijelo

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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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Radmila Vojinovic

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Kineska Nova Godina

The most important of the traditional Chinese holidays, Chinese New Year represents the official start of the spring, beginning on the first day of ...