Six lectures on light : delivered in America in 1872-1878 (1886)
Tyndall, John, 1820-1893 · New York : D. Appleton · leaf 281
th of this semicircle is foundby an easy calculation to be 4248 millimeters. The lengthC (i is so small that it sensibly coincides with the arc of thecircle. Hence the length of the semicircle is to the lengthC d of the wave as 180° to 1 38, or, reducing all to seconds,as 648, 000 to 98, Thus, we… … PLUlSfES PRODUCED BY THE CPvYSTALLIZATION OF WATER. Photographed by Professor Lockett APPENDIX. 249 JFA TER CR YSTA LLIZA TION. Tilt following letter from my excellent friend ProfessorJoseph Henry refers to a surprising case of crystallizationhere figured, and for -which I am indebted to the…
Light
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