PeterDonis's latest activity
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PeterDonis replied to the thread I A sufficient condition for integrability of equation ##\nabla g=0##.Mathematically, sure. But math isn't the same as physics. In physics, we pick a specific connection for physical reasons, regardless of... -
PeterDonis replied to the thread I A sufficient condition for integrability of equation ##\nabla g=0##.Um, solve the differential equation? If you know the connection is the Levi-Civita connection for some metric, then you have a...
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PeterDonis replied to the thread I A sufficient condition for integrability of equation ##\nabla g=0##.You missed my point. My statement in post #29, which is a completely uncontroversial fact, contradicts your claim that I quoted. That...
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PeterDonis replied to the thread A Gravitational Analysis of Wide Binaries.Then why did you talk about it in the OP? And in other subsequent posts? You can't have it both ways. If you don't want to talk about...
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PeterDonis replied to the thread I A sufficient condition for integrability of equation ##\nabla g=0##.The Levi-Civita connection, which will have nonzero curvature in any metric that is not the flat Minkowski metric, can be derived purely...
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PeterDonis replied to the thread A Gravitational Analysis of Wide Binaries....claims to be an alternative explanation of the Pioneer Anomaly, among other things. You said so yourself in the OP of this thread. So...
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PeterDonis replied to the thread A Gravitational Analysis of Wide Binaries.I couldn't say. You'd have to ask him. But hand-waving arguments on your part are worth a lot less than looking at what the paper...
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PeterDonis replied to the thread A Gravitational Analysis of Wide Binaries.I don't think that's a fair description of the paper you referenced. For example, consider these items from the abstract: "[W]e are...
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Well if Das Ministerium für Glück und Wohlbefinden says so, it must be. One must follow orders And one dares not contradict Das...
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PeterDonis replied to the thread Does it make sense to build new radio telescopes?.Yes, that would be another logical step. But you seemed to be skeptical that radio astronomy would continue to advance--but now you're...
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PeterDonis replied to the thread I Violation of Bell Inequality with unentangled photons.I agree that you can't just bin things into binary measurements. I'm not sure exact continuity is required. For example, with a momentum...
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PeterDonis replied to the thread I Violation of Bell Inequality with unentangled photons.No. Interference between position and momentum eigenkets? What does that mean? I don't understand. To me the key point is whether or...
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PeterDonis replied to the thread I Violation of Bell Inequality with unentangled photons.How does it even make sense to combine position and momentum eigenkets? I don't understand what you're doing here.
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PeterDonis replied to the thread I Violation of Bell Inequality with unentangled photons.I see, basically you're constructing a state in which two particles are known to be at the exact same position, but we don't know what...
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PeterDonis replied to the thread I Violation of Bell Inequality with unentangled photons.Fair enough, replace my minus sign with a plus sign and make them bosons. :oops:
