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How is physics taught and learned. Teaching strategies, class examples and demonstrations; learning resources, career advice, etc. For explicit problems, use the 'homework' tag instead.

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Geometric features of a closed finite universe

No it does not. Let me show a better reasoning for the existence of 4 dimensions of space. Usually we use 2-d space(paper) and show that how it curves and say that 4-d space-time does this in a simila …
Rounak Sarkar's user avatar