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Theory of relativity
Einstein created a relativity theory about gravity that was more accurate than Newton's. -
expanding universe
the thought that the universe was expanding was thought to be impossible. -
albert einstein
Einstein had already introduced his theory of relativity, and produceda model of space based on the theory that space was curved by gravity -
Friedmann
Alexander Friedmann used field equations to figure out that the universe was expanding -
Lemaître
Lemaître wrote an article suggesting the Big Bang Theory but he did not have the data to back it up. He used Einstein's theory of relativity. -
gjalaxies
an oversation was taken and it was noted that all distant galaxies and clusters hav a velosity that is directed away from our vantige point -
hubble's law
hubbles law, stated that galaxy are moving away from each other at an ever increasing rate -
hubble
hubble was able to calculate the distance of an object in the universe by the velocity oft the object -
edwin hubble
hubble anounced that galaxies out side of the milky way were moving away from us at the distace they are from us -
hubble digram
hubble made his measrements and compared them to the red shift and it made a famous hubble digram