Tissandier, Gaston, 1843-1899, Frith, Henry, 1840-, Harry Houdini Collection (Library of Congress) DLC · London, New York [etc.] Ward, Lock & Co · leaf 610
cks, in case the experiment does not succeed with thefirst attempt. Having now seen how this point we call the centre ofgravity acts, we may briefly explain it. CENTRE OF GRAVITY. 47 The centre of gravity of a body is that point in whichthe sum of the forces of gravity, acting upon all… … Balancing a v.^.^..! .^.i » uail and key. every particle of the body, and acts upon them as parallelforces. For if a stone be broken all the portions willequal the weight of the stone; and if some of them besuspended, it will be seen that they hang parallel to eachother, so we may call these…
Scientific recreations
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