How Albert Einstein’s Relativity Theory Changed a Small Town in Northern Brazil

Albert Einstein´s theory of relativity changed the once provincial town of Sobral, in Ceará. On Wednesday, the theory’s 100th anniversary of confirmation was celebrated there.

By Harold Emert

RIO DE JANEIRO, BRAZIL - During a visit to Rio de Janeiro in 1925, the German, Swiss, and American physicist Albert Einstein said: "The luminous sky of Brazil proved the theory formulated by my mind.”

Einstein was referring to Sobral in the northeast of Brazil, where his general theory of relativity was “proven” in May 1919, during a solar eclipse which lasted 6 minutes and 51 seconds.

On this historic day, Brazilian, American, and British scientists invaded Sobral with their telescopes and measuring devices to observe a solar eclipse to corroborate the physicist’s 1915 theory that light . . .

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