PeterDonis's latest activity
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PeterDonis replied to the thread Double slit experiment with single electrons and no observation.I'm not sure what you mean here. If what you are calling the "backboard" is present at all, whatever is emitted from the source will end... -
I don't know about the compliance standards, but the new format is harder to read. I have run into this before. Here are before/after...
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* When I came across this new look last night, my second reaction was, "Here we go again!" My first reaction can't be posted on a...
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PeterDonis replied to the thread Undergrad Does the steady-state model resolve Olbers' paradox?.You are correct that this was not at all my intention. Nor do I think it was the intention of the process described in the Bonnor paper.
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PeterDonis replied to the thread Undergrad Does the steady-state model resolve Olbers' paradox?.No, I italicized the word "call" to emphasize the same thing that I quoted from McCrea, via Bonner. I was not at all intending to say...
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PeterDonis replied to the thread Undergrad Does the steady-state model resolve Olbers' paradox?.I don't see the difference. The way you "calculate the stress-energy tensor of matter that would be required to satisfy the EFE" is to...
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PeterDonis replied to the thread Undergrad Does the steady-state model resolve Olbers' paradox?.The Bonnor paper that was referenced in this thread does not appear to think so--at least it expresses no issues with the approach it...
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PeterDonis replied to the thread Undergrad Does the steady-state model resolve Olbers' paradox?.It tells you what the implications are of assuming that the EFE is the correct theory of gravity and that the metric is the given...
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PeterDonis replied to the thread Undergrad Does the steady-state model resolve Olbers' paradox?.Yes, it does. The physical reasoning is "this is the kind of stress-energy that would be necessary to produce a metric with this...
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PeterDonis replied to the thread Announcement PF Style 2026.My usual choice for those applications is Courier New (the TrueType version). I think at least some of the monospace in the new style is...
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PeterDonis replied to the thread Undergrad Does the steady-state model resolve Olbers' paradox?.Yes, but since you can always just divide the Einstein tensor by ##8 \pi## (and whatever other numerical factor is dictated by your...
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Ugh! Not a fan of the forest green and earth tones. Also, the font used for "Today, 7:31 AM" in light gray, maybe Courier, is hard on...
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This. The previous style looked much more modern and clear.
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PeterDonis reacted to renormalize's post in the thread Double slit experiment with single electrons and no observation with
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Can you describe an empirical observation or experiment which would distinguish between an electron that actually "exist(s) in our... -
PeterDonis replied to the thread Undergrad Does the steady-state model resolve Olbers' paradox?.See the last part of my post #19 for a little more detail about how we know this.