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1Relating to or determined by the sun:‘solar radiation’
- ‘Most of the spots that did appear were located near the solar equator and scarcely lasted for more than one rotation of the Sun.’
- ‘A large solar particle event can produce enough radiation to kill an unprotected astronaut.’
- ‘For the professional astronomers, the main subject of inquiry was the solar corona.’
- ‘Meteorites represent a fossil record of the early conditions of the solar nebula.’
- ‘Collisions between energetic particles and the solar atmosphere also produce neutrons and gamma rays.’
- ‘As they move around as the Sun spins, sunspots near the solar equator return to their starting point in about twenty-five days.’
- ‘The encounter also shortened the comet's solar orbit time from about 40 years to less than seven.’
- ‘These plasma flows transport, concentrate, and help spread out solar magnetic fields.’
- ‘Specific problems which Lexell studied in astronomy were his calculation of the solar parallax and his calculation of the orbits of several comets.’
- ‘Space is a hostile environment due to solar radiation, particle impacts and the intense cold of deep space.’
- ‘At the Earth's surface, the atmosphere acts as an extra blanket to stop all but the most energetic of the solar and galactic radiation.’
- ‘Mars has only the tiniest trace of a magnetic field, nothing like the huge bubble that surrounds the earth and protects us from solar and cosmic radiation.’
- ‘Some asteroids orbit at a solar distance where their year is matched to Jupiter's year.’
- ‘Until that day, solar astronomers will continue to watch the sun with trepidation, never knowing what might erupt next.’
- ‘Large solar disturbances heat Earth's upper atmosphere, causing it to expand.’
- ‘Early theories about sunspots were many and various including that sunspots were clouds or sunspots were solar asteroids.’
- ‘Sunspots and solar storms tend to occur in 11-year cycles; the current cycle peaked in late 2000.’
- ‘Algol comprises two large stars, one about three times the solar diameter, the other four times.’
- ‘By then solar science was thriving and astronomers began keeping daily logs of the number of spots on the Sun.’
- ‘The bright star Sirius appeared again in the predawn sky, having been lost in the solar glare for a couple of months.’
- 1.1 Relating to or denoting energy derived from the sun's rays:‘solar heating’
- ‘The Greens' policy of interest-free loans for solar heating in homes would cut energy demand and save people money, Mr Donald said.’
- ‘It produces no carbon emissions, thanks to solar heating and clever design.’
- ‘Any site having solar and electromagnetic energy is good for residence.’
- ‘Wind, solar and wave energy are being touted again as the cheap, clean fuels of the future.’
- ‘It is believed that a minor perturbation in solar heating caused by orbital changes could lead to another ice age or warming period.’
- ‘Our goal should be that half the buildings constructed in 2010 would require only solar heating or cooling systems.’
- ‘The zoo built a new enclosure for the otters last year, complete with waterfalls and solar heating to keep the correct temperatures.’
- ‘Fifteen sports will be catered for in a huge Olympic Park, where the Olympic village will be powered by solar and geothermal energy.’
- ‘Ground-source heat pumps pull energy from solar heat stored in the surface layer of the ground.’
- ‘All the classrooms incorporate energy-efficient lighting and passive solar heating.’
- ‘Alternative energies such as solar, wind and sea power will generate a fair amount of energy but won't be enough on their own.’
- ‘There are few attempts to utilize solar and wind energy.’
- ‘The teacher says her tiny pupils have already become firm believers in ecological solar - generated energy.’
- ‘Passive solar heating is provided by black, water-filled tubes on the roof that mimic dinosaur capillaries.’
- ‘We have to popularise non-conventional energy such as solar and wind energy.’
- ‘They reflect the lithological and mineralogical variations of exposed rocks and soils by separating the solar reflected energy into six spectral bands.’
- ‘This solar house manages considerable energy saving through passive means without excessive costs or gadgetry.’
- ‘Funding for research into renewable energy sources like solar, geothermal and biomass would also be trimmed.’
- ‘There are several sources of sustainable energy such as solar and wind power that is also eco-friendly.’
- ‘The Northern Territory has plentiful resources of renewable energy, solar, wind, wave, tidal.’
Late Middle English: from Latin solaris, from sol sun.
An upper chamber in a medieval house.
- ‘Sighing, Valerian set down her needlework and followed the seven year old to the window of the solar.’
- ‘No one would have believed that she was the sort of woman who would rather be climbing the rigging on a ship than embroidering a pillow in the solar.’
- ‘Pray that the stairs are passable all the way to the solar.’
- ‘The lilting notes of Cein's flute filled the air as Edith sat amongst her ladies-in-waiting in her private solar.’
- ‘I would hazard a guess that what he found were nail holes on part of the panelled screen commonly found in the better class of English medieval house between the hall and the solar.’
Middle English: from Anglo-Norman French soler, from Latin solarium gallery, terrace.
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