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主题:[转载]牛顿的水桶1687-2011(一:绝对的转动) -- witten1

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家园 riemann流形

Riemann几何是具有二次型度量的微分流形, an another perfect world assumption, but as a "gauge model" it is ok?

in that sense:

QFT: everybody is a smart man, no money to make;

conventional thermodynamic systems: everybody is a stupid man, no money to make;

in between, kind of where we are now:

"non sr macro qm": a lot of money to be made and lost between stupid neuron/离子 "heat" driven brain mass and "s-cat" based groups like wh, ws, sv, and tg?

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