Tissandier, Gaston, 1843-1899, Frith, Henry, 1840-, Harry Houdini Collection (Library of Congress) DLC · London, New York [etc.] Ward, Lock & Co · leaf 75
closely together as the classicalMagdeburg hemispheres are united. It is possible toraise the undermost tumbler by holding up the upper one.The paper may be scorched on the under side, but thesuccess of the experiment is not thereby imperilled. 58 !=RESSURE OF THE AIR THE •■sucker: This is a… … jH)^ Fig. 49.—The Schoolboy Inventor of the Air-pump. \ of which a cord is fixed. This piece of leather pressedupon the pavement forms a kind of cupping-glassarrangement, and considerable force must be exercisedto draw it away from the pavement. Large stones maybe lifted by these means. The piece…
Scientific recreations
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