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.
On March 19, 1916 Albert Einstein submitted his âFoundation of the General Theory of Relativityâ for publication in the journal Annelen Der Physik. He had presented the final version of his theory to the Royal Prussian Academy of Sciences the previous November, and it would be published later that spring.