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PeroK's latest activity
PeroK
reacted to
renormalize's post
in the thread
A
Horndeski: denominator null implies an infinite quantity
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Like
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1) The left side of your equation has two free unprimed indices ##\mu \nu## but the right has three ##\mu \nu \lambda##. Can you...
Yesterday, 3:23 PM
PeroK
reacted to
SAKubisch's post
in the thread
I am just a guy
with
Wow
.
I have actually formulated my theory with chat gpt... I hope that's no reason for a ban 😅
Yesterday, 1:49 PM
PeroK
replied to the thread
B
Dark Energy: Are We All Missing The Obvious?
.
Well, actually, that's a popular misconception. Virtual particles are part of the mathematical calculations, but are not physical...
Yesterday, 12:13 PM
PeroK
reacted to
songoku's post
in the thread
The value of (b - c) / (c - a)
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Like
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I understand. Thank you very much for all the help and explanation fresh_42, Hill, WWGD, PeroK, Steve4Physics, jack action, SammyS...
Saturday, 4:56 AM
PeroK
reacted to
Nugatory's post
in the thread
I
Train Tunnel Paradox Question
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Like
.
Do remember that bright or dark at any point inside the tunnel depends on light that travelled from the ends of the tunnel while the...
Saturday, 1:36 AM
PeroK
replied to the thread
The value of (b - c) / (c - a)
.
That said, noting that (by inspection!), ##c - a = b - c## solves the equation is simplest of all!
Friday, 3:44 PM
PeroK
reacted to
Hill's post
in the thread
The value of (b - c) / (c - a)
with
Like
.
Even shorter. Substituting ##(b-c)+(c-a)## for ##(b-a)## leads straight to ##((b-c)-(c-a))^2=0##.
Friday, 3:41 PM
PeroK
reacted to
SammyS's post
in the thread
The value of (b - c) / (c - a)
with
Like
.
This will give a solution in a few easy steps.
Friday, 3:34 PM
PeroK
reacted to
Orodruin's post
in the thread
I
What if one is in 1905 and debating foundational fundamentals?
with
Like
.
This is incorrect. Relativity as such was not invented by Einstein. It is an integral part of Newtonian mechanics as well. “Vacuum” was...
Friday, 1:07 AM
PeroK
reacted to
PeterDonis's post
in the thread
I
Does expanding space cause cosmological redshift?
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Like
.
No, it isn't "assumed" to be due to anything. It is calculated to be due to the spacetime geometry of the universe and the relationship...
Friday, 1:05 AM
PeroK
replied to the thread
The value of (b - c) / (c - a)
.
This is the problem with multiple choice. Note that the equality holds if ##b - a## is twice ##b - c## and ##c - a##. I.e. ##c## is...
Friday, 1:02 AM
PeroK
replied to the thread
B
Peculiar Tennis Occurrence
.
In tennis, a kick serve involves putting topspin (and often sidespin) on a serve, causing the ball to kick up off the surface, and away...
Friday, 12:54 AM
PeroK
replied to the thread
B
Peculiar Tennis Occurrence
.
If the ball hits an irregularity in the court, then it may bounce lower. This is sometimes called a bad bounce, as it makes the ball...
Friday, 12:45 AM
PeroK
reacted to
ohwilleke's post
in the thread
B
Questions about dark matter/energy
with
Informative
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I usually call models that don't use dark matter particles to explain "dark matter phenomena" either "gravity based models" or "modified...
Thursday, 1:17 PM
PeroK
replied to the thread
Proving convergence of sequence from convergent subsequences
.
I don't think there are any mistakes, but the consensus is that you that they could be simpler. In the second proof, you spend a lot of...
Thursday, 1:03 AM
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