He did not; he was not primarily an engineer. He developed the theories that made the development of an atomic weapon possible.

did Albert contribute gravity

Albert Einstein was 26 years old when he formulated his special theory of relativity in 1905. He was born on March 14, 1879.

Nothing. Einstein has been dead for 60 years.

yes

Einstein did not DISCOVER E= mc^2

He derived this formula based on other parts of his work. Specifically, he showed that an object that radiates an amount of electromagnetic energy 'E' would lose an amount of mass equal to E/c^2 At the time, this formula was an almost trivial part of 1905 papers.

He did the above while working as a patent clerk in Bern, Switzerland.

It helps you to know that if you loaded a 10 pound bag of groceries into your car you will unload a 10 pound bag of groceries from your car at home, not a 37 pound bag or a 2 pound bag...

It is unknown how much sleep Albert Einstein got. It all depends on how busy he was.

They say some great men like Einstein and Swami Vivekanand used more.

Albert Einstein has been dead for 59 years.

they were shocked

It is not a variable.

The equation says that the energy contained in any given mass is equivalent to the mass times the velocity of light squared.

Albert Einstein won The Nobel Prize in Physics in 1922.

The Noble prize awarded to Albert was the "Reverence For life," and it was awarded in 1952 for his philosophy.

Albert Claude won The Nobel Prize in Physiology or Medicine in 1974.