He was hit by an apple and he wondered why it fell and what caused it to fall.
gravity
the founder of modern physics
Discover gravity
Gravity
Isaac Newton did not discover gravity, but he is credited with developing the universal law of gravitation and explaining the mechanics of gravity in his work "Philosophiæ Naturalis Principia Mathematica." The concept of gravity was known to ancient civilizations, and Newton's contributions built upon existing knowledge.
gravity
Discover gravity
gravity
they are attracted to the sun bye gravity
the laws of gravity
An apple.
An apple