Tissandier, Gaston, 1843-1899, Frith, Henry, 1840-, Harry Houdini Collection (Library of Congress) DLC · London, New York [etc.] Ward, Lock & Co · leaf 59
themselves intoa trickling stream, which lasts as long as the tail of thelobster remains immersed in the water. TO MAKE A NEEDLE FLOAT.Take an ordinary needle and put it upon a fork, and 42 DENSITY, HYDROSTATICS, ETC. slowly lower the fork into a tumbler of water ; the needlewill then float just… … Fig. 32.—The Floa.ing Needle. comparison with that of the needle, the latter is supportedby it, so that scarcely any part of the needle is touchingthe water ; of course, if the water penetrated the needleseye, the weight of the fluid would cause the thing to sinkimmediately. Another method is to…
Scientific recreations
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