- 업종: Aerospace
- Number of terms: 16933
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The Executive Branch agency of the United States government, responsible for the nation's civilian space program and aeronautics and aerospace research.
Also known as the "Geminids," the Geminid Meteor Shower is an annual meteor shower that occurs around December 13th-14th of each year. Unlike other meteor showers, which originate from the debris of passing comets, the Geminids are the visual debris stream of an object called 3200 Phaethon, which is presumed to be an asteroid in the Pallas family.
To date, NASA can not figure out why the Geminid Meteor Shower is as bright as it is, and thus the Geminids are a unique yearly occurrence in the world of astronomy.
Industry:Astronomy
Also known as the "Geminids," the Geminid Meteor Shower is an annual meteor shower that occurs around December 13th-14th of each year. Unlike other meteor showers, which originate from the debris of passing comets, the Geminids are the visual debris stream of an object called 3200 Phaethon, which is presumed to be an asteroid in the Pallas family.
To date, NASA can not figure out why the Geminid Meteor Shower is as bright as it is, and thus the Geminids are a unique yearly occurrence in the world of astronomy.
Industry:Astronomy
Le point sur la sphère céleste directement au-dessus de l'observateur. En face le nadir.
Industry:Aerospace
Rayonnement électromagnétique dans le quartier de longueur d'onde de 100 picometer.
Industry:Aerospace
Une gamme de fréquences radio à micro-ondes dans le quartier de 8 à 12 ghz.
Industry:Aerospace
La force gravitationnelle exercée sur un objet d'une certaine masse. Le poids de la masse m est mg Newtons, où g est l'accélération locale due à la pesanteur de l'organisme.
Industry:Aerospace
La distance qu'une vague d'une oscillation simple de rayonnements électromagnétiques se propagent pendant le temps nécessaire pour une oscillation.
Industry:Aerospace
Une mesure de puissance électrique égale à potentiel en volts fois courant en ampères.
Industry:Aerospace
Une quantité vectorielle dont la magnitude est la vitesse de l'organisme et dont la direction est la direction de l'organisme du mouvement.
Industry:Aerospace
