July 1, 1956
1 min read
Progress in Solar Power
Although there are many ways to convert the energy of the sun into useful forms, most of them are uneconomic. The emphasis is now on devices simple and cheap enough to repay their cost
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July 1, 1956
1 min read
Progress in Solar Power
Although there are many ways to convert the energy of the sun into useful forms, most of them are uneconomic. The emphasis is now on devices simple and cheap enough to repay their cost