Energy terms . 2014.
Solar energy — is the light and radiant heat from the Sun that powers Earth s climate and weather and sustains life. Since ancient times it has been harnessed for human use through a range of technologies. Solar radiation along with secondary solar resources… … Wikipedia
Solar thermal energy — Solar thermal system for water heating in Santorini, Greece … Wikipedia
Solar power satellite — A solar power satellite, or SPS or Powersat, as originally proposed would be a satellite built in high Earth orbit that uses microwave power transmission to beam solar power to a very large antenna on Earth. Advantages of placing the solar… … Wikipedia
Solar wind — For other uses, see Solar wind (disambiguation). The solar wind is a stream of charged particles ejected from the upper atmosphere of the Sun. It mostly consists of electrons and protons with energies usually between 1.5 and 10 keV. The stream of … Wikipedia
Solar sail — Solar sails (also called light sails or photon sails, especially when they use light sources other than the Sun) are a proposed form of spacecraft propulsion using large membrane mirrors. Radiation pressure is about 10 5 Pa at Earth s distance… … Wikipedia
Satellite Internet access — Satellite Internet services are used in locations where terrestrial Internet access is not available and in locations which move frequently. Internet access via satellite is available worldwide, including vessels at sea and mobile land… … Wikipedia
Solar Probe Plus — Artist s concept of NASA s Solar Probe Plus Operator NASA / Applied Physics Laboratory Mission type Orbiter … Wikipedia
Satellite temperature measurements — have been obtained from the troposphere since 1978. By comparison, the usable balloon (radiosonde) record begins in 1958.Satellites do not measure temperature as such. They measure radiances in various wavelength bands, which must then be… … Wikipedia
Solar minimum — is the period of least solar activity in the solar cycle of the sun. During this time, sunspot and solar flare activity diminishes, and often does not occur for days at a time. The date of the minimum is described by a smoothed average over 12… … Wikipedia
Satellite — Sat el*lite, n. [F., fr. L. satelles, itis, an attendant.] 1. An attendant attached to a prince or other powerful person; hence, an obsequious dependent. The satellites of power. I. Disraeli. [1913 Webster] 2. (Astron.) A secondary planet which… … The Collaborative International Dictionary of English
