atomski sat

atomski sat

A highly-accurate clock which measures time by the frequency of electromagnetic radiation produced by a single caesium 133 atom.

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Bransch/domän: Physics
Category: Nuclear & particle physics
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atomski radijus

Chemistry; General chemistry

One half the distance between nuclei of atoms of the same element, when the atoms are bound by a single covalent bond or are in a metallic crystal. The radius of atoms obtained ...

atomski broj

Chemistry; General chemistry

The number of protons in an atomic nucleus . The atomic number and the element symbol are two alternate ways to label an element. In nuclide symbols , the atomic number is a ...

atomski broj

Physics; General physics

The number of protons in an atomic nucleus.

kilometar sat

Automotive; Automobile

instrument koji mjeri i pokazuje kilometrazu/miljazu, pocevsi od 1/10, pa destine i stotina kilometara/milja

Avogadrov broj,, broj atomski 12 grameni carbonu

Astronomy; General astronomy

The number of atoms in 12 grams of carbon 12. The number of atoms in a gram-atom (mass in grams numerically equal to the atomic weight) or the number of molecules in a ...

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Bransch/domän: Aerospace Category: Space flight

svemirski šatl

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