Discoveries and inventions of the nineteenth century (1905)
Routledge, Robert · London : G. Routledge and Sons · leaf 196
e of heel would be 22^, and so on. The reader no doubt perceivesthat a ship, like any other body, must be supported, and he is probablyaware that the support is afforded by the upward pressure of the water.He may also be familiar with the fact that the weight of every body actsupon it as if the… … Fig. 74. the same point with reference to the body. When the centre of gravityhappens to be within the solid substance of a body, there is no difficulty inthinking of the force of gravitation acting as a downward pull applied atthe centre of gravity. But this point is by no means always within…
Inventions
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