| 单词 | sun power |
| 释义 | > as lemmassun power sun power n. (a) energy emanating from the sun in the form of heat, light, etc.; (now chiefly) power generated by harnessing this energy, solar power; (b) the relative intrinsic brightness of a star compared to that of the sun; a unit of intrinsic brightness equal to that of the sun. [In sense (b) after candle power n. at candle n. Compounds 2.] ΘΚΠ the world > the universe > star > star-matter > [noun] > brightness brightness1674 absolute brightness1832 sun power1853 luminosity1906 the world > matter > physics > electromagnetic radiation > solar radiation > [noun] sun power1853 sun force1857 solar power1915 irradiance1956 solar1976 1853 Morning Chron. 31 Aug. We fear that, with so much rain, and so great a deficiency of sun power..the crop will come down. 1905 T. E. Heath in Knowl. & Sci. News 2 57/1 We are accustomed to think of gas and electric lights as being of so many candle-power each. I have therefore drawn the stars of different shapes, which distinguish how many Sun-powers each star is. 1935 Pop. Mech. Apr. 518/1 The device which makes the sun power available to the motor is a super-sensitive photo-electric cell which converts ordinary sunlight into electricity. 1999 I. Nicolson Unfolding our Universe ix. 137/1 Deneb, in Cygnus, has an absolute magnitude of −7. 3, corresponding to a luminosity of about 70,000 Sun-power. 2006 N.Y. Mag. 13 Mar. 40/1 Any drop in oil below $30 a barrel, the price where sun power seems to lose viability. < as lemmas |
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