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djanni_unchained's latest activity
djanni_unchained
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PeterDonis's post
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Understanding the active/passive transformation of a scalar field
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Shouldn't it just be ##\Phi(\mathcal{P}): M \mapsto \mathbb{R}##? A scalar is just a number, not a 4-tuple of numbers. These...
May 2, 2024
djanni_unchained
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Ibix's post
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How do we interpret measurements of Mercury's position?
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##\phi## does have the same meaning, actually, so that isn't an issue. And we're looking at a rate of change of a ##\phi## coordinate...
Apr 27, 2024
djanni_unchained
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How do we interpret measurements of Mercury's position?
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Special and General Relativity
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When scientists measured the position of Mercury in the 18th century, they interpreted the results assuming a Euclidean background...
Apr 25, 2024
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