univerzalno vreme

univerzalno vreme

Also called Zulu (Z) time, previously Greenwich Mean Time. UT is based on the imaginary "mean sun," which averages out the effects on the length of the solar day caused by Earth's slightly non-circular orbit about the sun. UT is not updated with leap seconds as is UTC.

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التحسين

إضافة صورة

نوع المصطلح: اسم
المرادف (المرادفات)
مسرد المصطلحات
المجال / النطاق: فضاء
الفئة: رحلة الفضاء
Company: NASA
المنتج:
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انظر المصطلحات المشابهة

univerzalno tvrđenje

رياضيات; علم الهندسة

A conditional that uses the words 'all' or 'everything'.

efemeridno vreme

علم الفلك; فلك عام

Determined in principle from the sun's apparent annual motion, ET is the numerical measure of uniform time, which is the independent variable in the gravitational theory of the ...

univrzalno vreme

علم الفلك; فلك عام

A measure of time used by astronomers; UT conforms (within a close approximation) to the mean daily (apparent) motion of the sun. UT is determined from observations of the diurnal ...

vreme poluraspada

رياضيات; علم الجبر

The length of time it takes half of an amount of radioactive material to decay.

prostor-vreme

الفيزياء; فيزياء الجسيمات

See Special Relativity.

neidentifikovani leteći objekat (NLO)

فضاء; رحلة الفضاء

UFOs are unidentified aircraft which are attributed to alien space flight. One supposed UFO halted air traffic at Hangzhou Airport, China, on July 7. The appearance is being ...

svemirski šatl

فضاء; رحلة الفضاء

A reusable spacecraft with wings developed by the U.S. National Aeronautics and Space Administration (NASA) for human spaceflight missions. The first test flight took place in ...

zenit

فضاء; رحلة الفضاء

The point on the celestial sphere directly above the observer. Opposite the nadir.

x-zrak

فضاء; رحلة الفضاء

Electromagnetic radiation in the neighborhood of 100 picometer wavelength.

x-dijapazon

فضاء; رحلة الفضاء

A range of microwave radio frequencies in the neighborhood of 8 to 12 ghz.

težina

فضاء; رحلة الفضاء

The gravitational force exerted on an object of a certain mass. The weight of mass m is mg Newtons, where g is the local acceleration due to a body's gravity.