ST. PETERSBURG, Fla. — It's a tale as old as time itself: Isaac Newton sat under a tree, got hit in the head with an apple and came up with the theories of gravity and motion. So, the story itself may ...

GOTTFRIED LEIBNIZ, MATHEMATICIAN: When Isaac first explained his theory of gravity to me, I remember being impressed. Not by the theory, which, as far as I could tell, was basically that stuff falls ...

While at the University of Cambridge, Newton developed his theory of gravity and the three laws of motion. In his own words, “A man can imagine things that are false, but he can only understand things ...

In 1687, English physicist Isaac Newton published his famous Law of Universal Gravitation. The idea that all objects attract in proportion to their mass was a revolutionary idea that became a huge ...

This week marks the 328th anniversary of the publication of “Principia,” Sir Isaac Newton’s groundbreaking work detailing, among other concepts, his laws of motions and universal gravitation. But ...

Alex Chadwick talks Ira Flatow, host of NPR's Talk of the Nation Science Friday, about new examinations of the theories of Galileo and Isaac Newton relating to gravity. This is DAY TO DAY. I'm Alex ...

The seeds for the idea were planted when a student picked up an apple. The fruit had fallen from a special tree – a clone of the apple tree that inspired Sir Isaac Newton’s theory of gravity, ...

Here’s what you’ll learn when you read this story: In 1687, English physicist Isaac Newton published his famous Law of Universal Gravitation. The idea that all objects attract in proportion to their ...

Here’s what you’ll learn when you read this story: Einstein’s Theory of General Relativity, an immensely important update to Newton's Law of Universal Gravitation, is currently our best approximation ...