алфа-честичка

алфа-честичка

1) Nucleus formed by the α-process (q.v.) (see even-even nuclei.) 2) Particle first discovered in radioactive α decay, and later identified as helium nuclei (two protons and two neutrons bound together.) 3) The nucleus of a 4He atom, consisting of two protons and two neutrons. Mass of α-particle 4.00260 amu.

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ส่วนหนึ่งของคำพูด: noun
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Blossary:
อุตสาหกรรม/ขอบเขต: Astronomy
Category: General astronomy
Company: Caltech
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алфа честичка

Anthropology; Physical anthropology

A kind of positively charged subnuclear particle (consisting of 2 protons and 2 neutrons) given off by some isotopes when they decay or fission.

алфа честичка

Geography; Physical geography

Particle of matter that is positively charged. This particle consists of two neutrons and two protons and is emitted as a form of radioactivity from the nuclei of some ...

честичка

Education; SAT vocabulary

A minute particle of matter.

честичка

Chemistry; General chemistry

Мал дел од материјата, всушност најмалиот после молекулата. Молекулата се дели на честички.

Алфа

Design; Design

А "боја компонента", кој претставува на транспарентноста на објектот.

ахроматска леќа

Astronomy; General astronomy

Lens (or combination of lenses) that brings different wavelenghts within a ray of light to a single focus, thus overcoming chromatic aberration. It was first successfully made by ...

активна галаксија

Astronomy; General astronomy

1) Active galactic nuclei are very luminous. Their energy output is in two forms: nonthermal continuum and thermal emission line. 2) Any galaxy which is emitting large quantities ...

активна оптика

Astronomy; General astronomy

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

единица на забрзување

Astronomy; General astronomy

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

зголемување

Astronomy; General astronomy

1) A process by which a star accumulates matter as it moves through a dense cloud of interstellar gas; or, more generally, whereby matter surrounding a star flows toward it (as in ...

теорија на акумулација

Astronomy; General astronomy

The theory by which planetesimals are assumed to collide with one another and coalesce, eventually sweeping up enough material to form the planets.

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อุตสาหกรรม/ขอบเขต: Animals Category: Snakes

Кобра

Високо отровна змија од семејството елапидај родено во Азија и Африка. Кога се вознемирени, кобрата ја крева главата и ја проширува кожата на вратот ...