Block · one region of the page, as the scanner read it. It may hold a whole story, part of one, several, or an advertisement; stitching blocks into articles is the next step. Text is supplied OCR.
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ergy. He has designed and built several solar hot water heaters and he serves as an engineering consultant to Community Technology of Washington, D.C.
FRIDAY’S lecture is the third in an eight part series on Solar Energy and the Environment spon
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