jedinica atomske mase

jedinica atomske mase

The masses of atoms and molecules are generally given in atomic mass units. These units are based on a scale in which the mass of carbon 12 is taken to be 12. Atomic masses were originally given as atomic weights on a scale where the mass of the hydrogen atom was unity, later they were based on oxygen or oxygen 16; these scales have all been replaced by the carbon 12 scale.

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Ipar/Tárgykör: Astronomy
Kategória: General astronomy
Company: Caltech
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jedinica

Chemistry; General chemistry

A standard for comparison in measurements. For example, the meter is a standard length which may be compared to any object to describe its length.

aktinoidi

Astronomy; General astronomy

Elementi sa atomskim brojevima od 89 (Aktinij) i 103

aktinijum

Astronomy; General astronomy

Mekan, srebrno-beli radioaktivni metal koji sija u mraku

akivna optika

Astronomy; General astronomy

Controlling the shape of a telescope mirror at a relatively slow rate.

adaptivna optika

Astronomy; General astronomy

Compensating for atmospheric distortions in a wavefront by high-speed changes in the shape of a small, thin mirror.

americijum

Astronomy; General astronomy

radioactive silvery metal which does not occur naturally

jedinica ubrzanja

Astronomy; General astronomy

A unit for measuring acceleration, which is metre per second squared.

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Ipar/Tárgykör: Arts & crafts Kategória: Oil painting

vrt naslade

Bosch's most famous and unconventional picture, The Garden of Earthly Delights was painted between 1490 and 1510. The oil painting is on three panels, ...