Elementary treatise on physics, experimental and applied : for the use of colleges and schools (1906)
Ganot, A. (Adolphe), 1804-1887, Atkinson, Edmund, 1831-1901, Reinold, A. W. (Arnold William), 1843-1921 · New York : Wood · leaf 459
at the bottom to a glass tube which at one end serves to rest the whole apparatus in a wooden ii t r support. In the other end is fused a fine steel point. On this rests a small vane or fly, consisting of four arms otaluminium wire fixed at one end to a small cap, while at the others are fixedsmall… … 442 On Heat [449- If a source of light or of heat, a candle for instance, is brought near theapparatus, the fly rotates slowly in a direction showing that the blackenedside moves towards the light ; this movement, indicating an attraction,depends on a certain state of rarefaction. If, however, the…
Physics
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