електромагнетен спектар

електромагнетен спектар

The full range of frequencies, from radio waves to gamma rays, that characterizes light. The electromagnetic spectrum can be expressed in terms of energy, wavelength, or frequency (where the wavelength equals the speed of light divided by the frequency and energy equals Planck's constant times the frequency. )

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Loại từ: noun
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Ngành nghề/Lĩnh vực: Astronomy
Category: Planetary science
Company: PSRD
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Education; SAT vocabulary

An image formed by rays of light or other radiant energy.

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A range of electromagnetic radio frequencies used in the transmission of radio, data, and video.

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Design; Design

Групата на бои кои може да се претстави, на пример, на одредена монитор.

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Geography; Physical geography

Is a graph that describes the quantity of radiation that is emitted from a body at particular wavelengths.

метеорит

Astronomy; Planetary science

A natural solid object (metallic or stony/silicate) larger than 10 µm (microns) that has traveled through space, by natural means from the celestial body on which it formed, and ...

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Astronomy; Planetary science

An element with atomic number 2; symbol: He. It is the second most common element in the Sun and outer planets, but rare on the rocky planets.

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Astronomy; Planetary science

A hole or depression. Most are roughly circular or oval in outline. On Earth most natural craters are of volcanic origin. On the Moon most are of impact origin.

магматски океан

Astronomy; Planetary science

Term used to describe the layer of magma, hundreds of kilometers thick; thought to have covered the Moon 4. 5 billion years ago. The timing, duration, cooling rates, convection, ...

негравитациони сили

Astronomy; Planetary science

Forces that alter the path of a comet, which are not caused by gravitational interaction with the Sun and planets. Typically this refers to uneven outgassing from vents on the ...

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Astronomy; Planetary science

Person engaged in or trained for spaceflight.

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Ngành nghề/Lĩnh vực: Fruits & vegetables Category: Fruits

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The world's most popular fruit. The most common U.S. variety is the yellow Cavendish. They are picked green and develop better flavor when ripened off ...