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But Einstein wants to understand the real world and the real world doesn't work that way.
Einstein realizes his theory fail for accelerations, but in our universe, everything accelerates, on a bumpy road, jet planes, on a subway car, everything is accelerating. So there was a defect in Special Relativity.
On Einstein's imaginary journey, if his speed varies at all, his theory, his notion of how objects behave in time and space falls apart.
His scientific bind wants to apply to all cases.
Einstein knows that for his theory to work, it has to account for everything in the universe, and that includes the pervasive and invisible force that holds everything together.
Gravity. Gravity is everywhere. Gravity holds us to the floor. Gravity holds the sun together, the solar system together. Where was gravity in special relativity?
Einstein wants to expand his special theory of relativity into a general theory of relativity, a theory that will explain not just time, but also gravity. He realizes he will be fighting more than two centuries of scientific thought and his heroSir Isaac Newton.
It's 1907 and the 28yearold Albert Einstein is still a patent office bureaucrat. It's been two years since he published his special theory of relativity and the ambitious Einstein decides to advance an even more radical interpretation of the universea general theory of relativity. Doing this will require him to take on his scientific heroSir Isaac Newton.
In Einstein's time, Isaac Newton was God.
Newton was the founder of modern science. This is the actual first edition of Newton's Principia Mathematica of 1687. It's priceless artifacts. It's the very very famous book which became the foundation of universal physics for centuries until Einstein upsets the Apple Code.
It's been almost 250 years since the apple fell from the legendary tree on Isaac Newton's estate, giving Newton the inspiration to formulate his law of gravity.
Newton said that if an object falls, it's because there's a mysterious force called gravity, pulling... 

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