I saw the equation on general relativity and then I wondered: how did Einstein check if his equation was right or wrong?
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Various experiments can be done to prove einsteins theory correct.
Einstein theory predicts the bending of light due to gravity.
He took photos of a constellation of stars at night , when the sun is behind the earth and thus doesn't greatly effect the trajectory of light.
He then waiting for a solar eclipse to happen, so that he could take a photo of those same stars when the sun is infront of the earth, which predicts great light bending. With the eclipse neccessary as you wouldn't be able to see the stars otherwise.
The 2 photos proved that gravity bends light, by the exact amount the math predicts.
jensen paull
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