solar flux

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• 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

• Solar cycle — The solar cycle, or the solar magnetic activity cycle, is the main source of periodic variation of all solar phenomena driving variations in space weather. [ [http://www7.nationalacademies.org/ssb/SSB Space weather97.pdf Space Weather: A Research …   Wikipedia

• Solar variation — Solar variations are changes in the amount of solar radiation emitted by the Sun. There are periodic components to these variations, the principal one being the 11 year solar cycle (or sunspot cycle), as well as aperiodic fluctuations. Solar… …   Wikipedia

• 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 air conditioning — refers to any air conditioning (cooling) system that uses solar power. This can be done through passive solar, photovoltaic conversion (sun to electricity), or solar thermal energy conversion. The U.S. Energy Independence and Security Act of… …   Wikipedia

• Solar prominence — with images of Jupiter and Earth for size comparison. Solar prominence video clip (high resolution) A prominence is a large, bright feature extending outward from the Sun …   Wikipedia

• Solar neutrino unit — (SNU) is a new unit defined for convenience, which is more suitable for very low event rates.In principle there are two ways of detecting solar neutrinos: radiochemical and real time experiments. The principle of radiochemical experiments is the… …   Wikipedia

• Solar Euromed — Société de haute technologie solaire thermodynamique à concentration Solar Euromed Création 2007 …   Wikipédia en Français

• Solar flare — A solar flare is a violent explosion in a star s (like the Sun s) atmosphere releasing as much energy as 6 times; 1025 Joules.cite journal last=Kopp first=G. coauthors=Lawrence, G and Rottman, G. year=2005… …   Wikipedia

• solar wind — an emanation from the sun s corona consisting of a flow of charged particles, mainly electrons and protons, that interacts with the magnetic field of the earth and other planetary bodies. [1955 60] * * * Flux of particles, chiefly protons,… …   Universalium

• Solar neutrino problem — The solar neutrino problem was a major discrepancy between measurements of the numbers of neutrinos flowing through the earth and theoretical models of the solar interior, lasting from the mid 1960s to about 2002. The discrepancy has since been… …   Wikipedia