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English scientist who formulated the law of elasticity and proposed a wave theory of light and formulated a theory of planetary motion and proposed the inverse square law of gravitational attraction and discovered the cellular structure of cork and introduced the term `cell' into biology and invented a balance spring for watches (1635-1703)
By Princeton University
Word of the day
Board of Admiralty
- organized by Continental Congress, October 28, 1779, from earlier more numerous Committee. consisted two members Congress five others and had charge of all naval marine affairs. It was abolished February 7, 1781, upon the creation Secretary Marine.