Within an 18-month period, 1665 to 1667, he made discoveries about light, color & gravitation
He found that the force of universal gravitation makes every pair of bodies in the... [DOC] [TLE] 1.Text 1 Issac Newton NEWTON, SIR ISAAC (1642-1727), an ... [PAR] Newton discovered how the universe is held together through his theory of 
gravitation.