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Dale's latest activity
Dale
replied to the thread
I
Confused about time dilation -- motion vs energy
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No. As you mentioned, you can put 5 J of KE into an electron and get a huge amount of time dilation. The same 5 J of KE into a planet...
Sep 5, 2025
Dale
reacted to
Jaime Rudas's post
in the thread
A
Gravitational Analysis of Wide Binaries
with
Like
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Yes, but perhaps that's because the cited paper is from July 2011, while the main paper on asymmetric radiation of the Pioneers is from...
Sep 4, 2025
Dale
reacted to
JimWhoKnew's post
in the thread
B
How can a black hole absorb matter?
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Like
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Following @Ibix's clarification in #28, it seems that I misinterpreted his meaning.
Sep 3, 2025
Dale
replied to the thread
B
How can a black hole absorb matter?
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Why? The existence of any finite ##\Delta \tau## is sufficient. @Ibix argument doesn’t rely on there being an upper bound.
Sep 3, 2025
Dale
reacted to
JimWhoKnew's post
in the thread
B
How can a black hole absorb matter?
with
Haha
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The coordinates that I was talking about should cover the horizon (and possibly the interior). How else can the the metric be...
Sep 2, 2025
Dale
reacted to
Ibix's post
in the thread
B
How can a black hole absorb matter?
with
Like
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I would observe that there are two distinct periods in the history of a distant observer of a stellar collapse: the period where the...
Sep 2, 2025
Dale
reacted to
Greg Bernhardt's post
in the thread
Insights
Relativator (Circular Slide-Rule): Simulated with Desmos - Insight
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Insights auto threads is broken atm, so I'm manually creating these for new Insight articles. The Relativator was sold by (as printed)...
Sep 2, 2025
Dale
replied to the thread
B
How can a black hole absorb matter?
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That is only a small part of the trick, not even close to the whole trick. Other parts of the trick include 1) we can use any...
Sep 2, 2025
Dale
reacted to
JimWhoKnew's post
in the thread
B
How can a black hole absorb matter?
with
Like
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Consider a case of a collapsing progenitor, say. Suppose we are given an arbitrary event on the world-tube of an eternally-external...
Sep 2, 2025
Dale
reacted to
Ibix's post
in the thread
I
Can this experiment break Lorentz symmetry?
with
Like
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But you are still using Newtonian formulae, which means you accept the principle of relativity. So you are not testing the principle of...
Sep 1, 2025
Dale
reacted to
Asaad-Hamad's post
in the thread
I
Can this experiment break Lorentz symmetry?
with
Skeptical
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That is the critical point, my argument hinges on the partitioning of energy into 'spark' and 'passive' components. The spark energy...
Sep 1, 2025
Dale
reacted to
Cerenkov's post
in the thread
A
Could gamma-ray bursts have an intragalactic origin?
with
Like
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Then, if you found nothing to support your claim and if you rely on others to clarify the issue, your claim (that absorption is...
Sep 1, 2025
Dale
reacted to
Cerenkov's post
in the thread
A
Could gamma-ray bursts have an intragalactic origin?
with
Like
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There are two problems with your reply, Line_112. The first is that you still haven't cited any values for gamma ray absorption by the...
Sep 1, 2025
Dale
reacted to
Bandersnatch's post
in the thread
A
Could gamma-ray bursts have an intragalactic origin?
with
Like
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But to what extent? Attenuation by 10 or even 90% doesn't preclude detection. It's not all or nothing. You can't just hand-wave it and...
Sep 1, 2025
Dale
replied to the thread
B
How can a black hole absorb matter?
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This is too broad of a statement. The correct statement would be that in Schwarzschild coordinates the coordinate time asymptotically...
Sep 1, 2025
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