Henderson, C. Hanford (Charles Hanford), 1861-1941, Woodhull, John F. (John Francis), 1857-1941 · New York, D. Appleton and company · leaf 141
Fig. 72. 122 PHYSICS … Fig. 73. and properly instructive when used as a means of corre-lating principles which are thoroughly understood. Thebottle imp, or Cartesian diver (Fig. 72), always has an airchamber, sometimes concealed, within the body. This cham-ber contains just enough air to float the ob-ject. The chamber…
Physics
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