- 업종: Aerospace
- Number of terms: 16933
- Number of blossaries: 2
- Company Profile:
The Executive Branch agency of the United States government, responsible for the nation's civilian space program and aeronautics and aerospace research.
A charged particle consisting of an atom stripped of one or more of its electrons.
Industry:Aerospace
The angular distance of the orbital plane from the plane of the planet's equator, stated in degrees.
Industry:Aerospace
The line marking the apparent junction of Earth and sky. For the technical definition, please follow this link to the U.S. Naval Observatory's Astronomical Applications.
Industry:Aerospace
Einsteinian distortions of the space-time medium predicted by general relativity theory (not yet directly detected as of March 2010). (Not to be confused with gravity waves.)
Industry:Aerospace
The mutual attraction of all masses in the universe. Newton's Law of Universal Gravitation holds that every two bodies attract each other with a force that is directly proportional to the product of their masses, and inversely proportional to the square of the distance between them. This relation is given by the formula at right, where F is the force of attraction between the two objects, given G the Universal Constant of Gravitation, masses m1 and m2, and d distance. Also stated as Fg = gmm/r2 where Fg is the force of gravitational attraction, M the larger of the two masses, m the smaller mass, and r the radius of separation of the centers of the masses. See also weight.
Industry:Aerospace
Electromagnetic radiation in the neighborhood of 100 femtometers wavelength.
Industry:Aerospace
One of billions of systems, each composed of numerous stars, nebulae, and dust.
Industry:Aerospace
A thousandth of the metric standard unit of mass (see kg). The gram was originally based upon the weight of a cubic centimeter of water, which still approximates the current value.
Industry:Aerospace
A multiplier, x109, from the Latin "gigas" (giant). See the entry for CGPM.
Industry:Aerospace
