period poluraspada

An extended interval of time, understood usually within the context of an identifiable geographic region, characterized by a specific set of cultural, economic, social or ...

vreme poluraspada

Matematik; Cebir

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

vreme poluraspada

Antropoloji; Kültürel antropoloji

The time taken for half the quantity of a radioactive isotope in a sample to decay (see also radioactive decay).

adaptacioni period

Psikoloji; Davranış analizi

The phase in a behavior analysis program during which adaptation takes place. This can be assumed when behavioral patterns stabilize.

Ceres

Astronomi; Gezegen bilimi

The largest of the known asteroids; a dwarf planet. Also called 1 Ceres because it was the first asteroid to be discovered (by Piazzi in 1801).

Jarkovski efekat

Astronomi; Gezegen bilimi

An explanation for the shift in an asteroid's orbit around the Sun due to a thermal thrust caused by the body's uneven heating by sunlight. The illuminated side of an asteroid ...

Viking

Astronomi; Gezegen bilimi

U. S. Mission to Mars, composed of two spacecraft, launched in 1975. Viking 1 and Viking 2 both consisted of an orbiter and a lander. Primary mission objectives were to obtain ...

sublimacija

Astronomi; Gezegen bilimi

Phase transformation from solid to gas.

Misija Stardust

Astronomi; Gezegen bilimi

The fourth in NASA's Discovery program of low-cost spacecraft with highly focused science goals, Stardust was comprised of a spacecraft and capsule that completed a seven-year, ...

Solarna i heliosfericna observatorija

Astronomi; Gezegen bilimi

A project of international collaboration between ESA and NASA to study the Sun from its deep core to the outer corona and the solar wind. SOHO was launched in December, 1995. SOHO ...

Terimler Haberlerde

Öne Çıkan Terimler

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svemirski šatl

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