сілтілі металл (топтық элемент)

There are two families of metals: Ferrous and non ferrous. All ferrous metals contain iron. Non ferrous metals include aluminium, zinc and copper and its alloys, for example ...

металл

Kimya; Genel kimya

A metal is a substance that conducts heat and electricity, is shiny and reflects many colors of light, and can be hammered into sheets or drawn into wire. Metals lose electrons ...

А тобы

Astronomi; Genel astronomi

One of about a dozen of the strongest Fraunhofer lines seen in the Solar spectrum, the A band at 7600 angstoms is due to telluric lines of molecular oxygen in the Earth's ...

А жұлдызы

Astronomi; Genel astronomi

Star with spectral type A in which the spectrum of the Balmer lines of hydrogen attain their greatest strength. Helium lines can no longer be seen. Some metallic lines are ...

Ахиллес

Astronomi; Genel astronomi

Trojan asteroid (60° ahead of Jupiter. It was the first Trojan to be discovered.

атомдық нөмір (заряд нөмірі)

Astronomi; Genel astronomi

The number of protons in an atom's nucleus. This determines the type of element.

поляр шұғыласы

Astronomi; Genel astronomi

the light produced by excited atoms and ions in the upper atmosphere of a planet

азимут

Astronomi; Genel astronomi

1) Angular distance from the north point eastward to the intersection of the celestial horizon with the vertical circle passing through the object and the zenith. 2) Directional ...

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Ораза байрам

Muslim holiday that marks the end of Ramadan, Muslims are not only celebrating the end of fasting, but thanking GOD for the help and strength that he ...