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Omega0's latest activity
Omega0
reacted to
PeterDonis's post
in the thread
B
Black hole entropy
with
Like
.
There is some discussion of it in this PF thread: https://www.physicsforums.com/threads/how-does-unitarity-conserve-information.811776/...
Mar 14, 2024
Omega0
replied to the thread
B
Black hole entropy
.
Okay, let's say this is a reconstruction - and I try to ignore the problems which we already have with an "exact shape". Sure, you mean...
Mar 12, 2024
Omega0
replied to the thread
B
Black hole entropy
.
Okay, I appear to be too bad in QM... you say it not practical to retrieve the information any more. If I take a sugar cube and eat it...
Mar 12, 2024
Omega0
reacted to
PeterDonis's post
in the thread
B
Black hole entropy
with
Like
.
"Lost in entropy" is not the same thing as "information gone". The information is still there; it's just not practical to retrieve it...
Mar 12, 2024
Omega0
posted the thread
B
Black hole entropy
in
Special and General Relativity
.
We know that there is no law of conservation for the entropy. It is quite the contrary: If we have a closed system without exchange of...
Mar 12, 2024
Omega0
replied to the thread
Is zero of nothing nothing? If so, would you write units for nothing?
.
0 apples + 0 oranges = 0 fruit I know a bit dimensional analysis but also I know a bit about the empty set in mathematics. As you might...
Feb 1, 2024
Omega0
replied to the thread
Is zero of nothing nothing? If so, would you write units for nothing?
.
"Sorry, professor, I am not to very convinced by your arguments. I have questions... I learned in math that I do just do things betweens...
Feb 1, 2024
Omega0
reacted to
fresh_42's post
in the thread
Is zero of nothing nothing? If so, would you write units for nothing?
with
Like
.
... but ##0\,mV##, ##0\,V## and ##0\,kV## are all the same voltage.
Feb 1, 2024
Omega0
reacted to
fresh_42's post
in the thread
Is zero of nothing nothing? If so, would you write units for nothing?
with
Like
.
This is the same discussion as of why the zero vector is a vector. It has neither direction nor length but a vector space without it...
Feb 1, 2024
Omega0
replied to the thread
Is zero of nothing nothing? If so, would you write units for nothing?
.
Sure, okay, but this has nothing to do with voltage which is clearly relative to the grounding. 0V = 0kV = 0GV. I thought this is clear...
Feb 1, 2024
Omega0
posted the thread
Is zero of nothing nothing? If so, would you write units for nothing?
in
General Discussion
.
I stumbled over a datasheet of an old pentode where it says, in the english translation: I thought, wow, I am not sure if I wouldn't...
Feb 1, 2024
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