Prices of a stock will move throughout the day. Investors generally buy a stock they feel is undervalued, and sell a stock they feel is overvalued. For instance, if the price of AAPL is $600 dollars, it means the cost to purchase one share of Apple is $600 dollars.
Einstein quickly realized (or had known all along) that his new theory of gravity was really a theory of the cosmos. In 1917, he wrote a famous paper applying general relativity to the universe as a whole. Today that paper stands as the foundation for modern cosmology.
Sir Isaac Newton's theory of gravity was written in 1687, however he did not come up with a theory of relativity.The first person to come up with a theory of relativity was Galileo Galilei, but this theory turned out to be incorrect.In a paper in 1905 Albert Einstein built upon Galileo's ideas and produced the special theory of relativity.This is a very famous paper that turned the physics world on its head.ir Isaac Newton's theory of gravity was written in 1687, however he did not come up with a theory of relativity.