David Rittenhouse: For the greater beauty of the instrument, the balls representing the planets are to be of considerable bigness; but so contrived, that they may be taken off at pleasure, and others, much smaller, and fitter for some purposes, put in their places.

For the greater beauty of the instrument, the balls representing the planets are to be of considerable bigness; but so contrived, that they may be taken off at pleasure, and others, much smaller, and fitter for some purposes, put in their places.

-- David Rittenhouse


		Name: David Rittenhouse Type: Scientist Nationality: American Birth: April 8, 1732 Death: June 26, 1796

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