The Man Who Corrected Einstein

Опубликовано 15 октября 2019, 13:15

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This video is about how Russian physicist Aleksandr Fridman corrected Albert Einstein about the expansion of the universe. Einstein thought that general relativity implied that space had to be static and unchanging, but he had made a technical error regarding the differentiation of the metric (in particular, I believe he mistook the determinant of the metric for a scalar rather than a tensor density of weight 2). Friedmann didn't make this differential geometric mistake, and the cosmologies he found from the Einstein Equations were more varied in their properties - they could be expanding, or contracting, or (with the cosmological constant), static.

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REFERENCES

Alexander Friedmann
en.wikipedia.org/wiki/Alexande...

Einstein Wrongly Criticizes Alexander Friedmann
einsteinpapers.press.princeton...

Alexander Friedmann Corrects Einstein
einsteinpapers.press.princeton...

Einstein Admits his Mathematical Mistake
einsteinpapers.press.princeton...

Interrogating the Legend of Einstein’s “Biggest Blunder”
arxiv.org/abs/1804.06768

Cosmological Considerations in the General Theory of Relativity
einsteinpapers.press.princeton...

On the General Theory of Relativity (Einstein)
einsteinpapers.press.princeton...

The Field Equations of Gravitation
einsteinpapers.press.princeton...

The Einstein Field Equations
en.wikipedia.org/wiki/Einstein...

Presentation about the Sequence of Events
web.mit.edu/8.286/www/slides07...

Tensor Densities:
en.wikipedia.org/wiki/Tensor_d...


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