Henderson, C. Hanford (Charles Hanford), 1861-1941, Woodhull, John F. (John Francis), 1857-1941 · New York, D. Appleton and company · leaf 38
partly filled with colored water, such as a solu-tion of copper sulphate, and the whole allowed to stand forsome time, it will be found that the color distributes itselfalmost equally throughout the tumbler. This diffusion of fluids takes place even when the twoare separated by a porous partition.… … cell, has its lower end sealed by a tight rubber stopper, through which a long glass tube passes. The free end of the tube dips under the surface of a colored liquid in a tumbler below. If, now, a bell jar filled with hydrogen be quickly brought over the porous cup, the air inside the cup will be…
Physics
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