Harper's Magazine, 248권Henry Mills Alden, Thomas Bucklin Wells, Lee Foster Hartman, Frederick Lewis Allen Harper & Brothers, 1974 |
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... solar research . More on them in the back of this ' Wraparound . ' " Solar . Not many products available here yet . Bruce Kelly of the Energy Institute tells us that best solar cells ( sunlight to electricity ) are from Solar Power ...
... solar research . More on them in the back of this ' Wraparound . ' " Solar . Not many products available here yet . Bruce Kelly of the Energy Institute tells us that best solar cells ( sunlight to electricity ) are from Solar Power ...
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... SOLAR ENERGY- Bringing the sun down to earth fuels , and their friends in Wash- ington , have managed to hide the solar option behind a few as yet unexamined claims about high costs and " technical prob- lems . " Yet , as Farrington Dan ...
... SOLAR ENERGY- Bringing the sun down to earth fuels , and their friends in Wash- ington , have managed to hide the solar option behind a few as yet unexamined claims about high costs and " technical prob- lems . " Yet , as Farrington Dan ...
5 페이지
... solar flares and winter storms born in the Gulf of Alaska . There the charged particles expelled by solar flares cause geomagnetic storms that produce the bril- liant displays known as the northern lights . A few days after such storms ...
... solar flares and winter storms born in the Gulf of Alaska . There the charged particles expelled by solar flares cause geomagnetic storms that produce the bril- liant displays known as the northern lights . A few days after such storms ...
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