A History of Mechanics
Dover Publications, 1988 - 662 стор.
"A remarkable work which will remain a document of the first rank for the historian of mechanics." -- Louis de Broglie
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If two equal magnitudes do not have the same centre of gravity, the centre of
gravity of the magnitude made up of these two magnitudes is the point situated at
the middle of the line which joins their centres of gravity. (The proof, based on ...
It should be remarked, as Jouguet has done in this connection," that Albert of
Saxony's concept of centre of gravity, the point of a body at which all the weight
appears to be concentrated, was a purely experimental one, to him and his
displace its centre of gravity. As a more substantial mechanism, Albert of Saxony
mentioned erosion. The question arose as to how the mass of the waters could
be introduced. On this point Albert of Saxony's opinion was somewhat variable.
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