US Physicist and mathematcian Albert Einstein 1879 - 1955, who formulated the theory of relativity in 1916 and was awarded the Nobel Prize for physics in 1921. [Getty Images]

US Physicist and mathematcian Albert Einstein 1879 - 1955, who formulated the theory of relativity in 1916 and was awarded the Nobel Prize for physics in 1921, in a portrait taken in Philadelphia, 1936. (Photo by Popperfoto via Getty Images/Getty Images)

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