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Cementing of belts: Anon. (Amer. Mach., xxxviii, No. 24, 980.)

Publisher: Elsevier Science
Year: 1913
Tongue: English
Weight: 67 KB
Volume: 176
Category: Article
ISSN: 0016-0032
DOI: 10.1016/s0016-0032(13)90421-x

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ARTIFICIAL DAYLIGHT. 499 whereas if the light had all been subjected to daylight-producing absorption it should have required 2o,ooo watts. If, however, daylight could be produced directly in an illuminant without any waste heat radiation, it wottld not only 1)e a ranch more efficient process than t