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• 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

• David Faiman — in March 2009. David Faiman (born 1944 in the United Kingdom) is an Israeli engineer and physicist. He is a world expert on solar power.[1] He is the director of the …   Wikipedia

• David Mills (solar researcher) — David R. Mills (born 1946) is a researcher who has been active in solar energy research in Australia since 1975, working at the University of Sydney as a Principal Research Fellow till 2005. Mills specializes in solar thermal electricity… …   Wikipedia

• David Criswell — David R. Criswell, Ph.D is currently the Director of the Institute for Space Systems Operations at the University of Houston. ISSO is the operational agent for the Houston Partnership for Space Exploration. Criswell received a Bachelor of Science …   Wikipedia

• David Peck Todd — David Peck Todd. David Peck Todd (March 19, 1855 – June 1, 1939) was a noted American astronomer. He produced a complete set of photographs of the 1882 transit of Venus. Biography Todd was born in Lake Ridge, New York, the son of Sereno Edwards… …   Wikipedia

• David Starr, Space Ranger —   …   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

• 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 thermal energy — Solar thermal system for water heating in Santorini, Greece …   Wikipedia

• Solar power in the United States — is the largest available energy source for the United States, although in 2006 it accounted for less than 0.1% of electricity generation. Renewable resources (solar, wind, geothermal, hydroelectric, biomass, and waste) provided nearly 12 percent… …   Wikipedia