Guy's elements of astronomy, and an abridgement of Keith's New treatise on the use of the globes (1832)
Guy, Joseph. [from old catalog], Keith, Thomas, 1759-1824. A new treatise on the use of the globes. [from old catalog] · Philadelphia, Key, Mielke & Biddle · leaf 91
ball by means of the two forces acting together, will describethe line A a D. In the beginning the Grand Mover impressed such a degree of mo-tion upon these bodies as, if not controlled, would have whirled themonwards in straight lines to endless lengths, till they would have beenlost to… … ON THE CENTRE OF GRAVITY. 57 CHAPTER XIX. ON THE CENTRE OF GRAVITY. The Centre of Gravity is that point of the body, in which its whole weight is, as it were, concentrated, and upon which, if the body be freely suspended, it will rest. A weight of 1 cwt. at 10 feet from a prop, will balance another…
Astronomy · Celestial globes
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