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12:07 AM
Wow I just learned liam neeson was a physics/pure math major in college.
A very particular set of skills, may or may not contain mathematics and lethal combat arts.
 
 
5 hours later…
4:43 AM
@ACuriousMind !
 
5:07 AM
@JohnRennie !
 
@cOnnectOrTR12 Hi, I'm busy answering another question I'm afraid.
 
5:44 AM
I have a mechanical automatic watch. It charges with the hand movement. So does it charge even when the metal disk moves even a slightest bit or does it require one complete rotation?
 
 
2 hours later…
8:06 AM
 
8:30 AM
today I found out that xkcd has an additional joke hidden in the tooltip
 
Yes
It can be hard to find that out if you're looking at it on a phone
 
 
3 hours later…
11:22 AM
The most realistic scene of the big bang theory
 
 
2 hours later…
1:24 PM
@Slereah when sheldon talks physics is it correct in real life? Or some pretentious talk jibber jabber
 
fqq
it's pretty hit and miss IMO, in the first seasons they bothered a bit more with the blackboards etc
 
They have a physics consultant, which means it will usually be on topic but not very interesting
The whiteboards will usually have pretty basic textbook equation stuff
 
Do you own a mechanical watch?
 
I do not own a watch at all
 
I was thinking about these watches and I got stuck with how does it restore energy while winding
 
1:46 PM
in one of these spiral spring, as far as I know
 
Does it require to rotate one full rotation to charge the least or even a slightest movement is enough?
 
There are assemblages of cogs involved, I'm afraid it's not really my wheelhouse
 
2:19 PM
For those interested in an analysis of publication costs: f1000research.com/articles/10-20/v2
 
 
1 hour later…
3:47 PM
how much of limit do i have to know to do physics? just able to solve problems ? is it enough?
 
Depends on what you want to do, but that's usually enough yes
 
actually i am getting a huge headache in understand how limit works, its definition. I want to understand modern physics !
 
it is quite a headache to learn
at least properly
 
4:05 PM
any tips
 
Practice?
 
you mean solve problems? instead if i try to understand the definition will it not be of much help?
is there any book which explains it beautifully...
 
4:32 PM
we know that limit deltax/deltat as deltat tends to zero is defined. we take a value which i thought till now is unattainable. But now i am beginning to understand that its not unattainable. its unattainable as the slope but what we do is we use algebra to rearrange it in a way that we can see whats the exact value. By removing deltat out of the denominator and putting it in with addition(for example)
i think i am right
 
 
5 hours later…
9:18 PM
@gls found this paper in a comment on one of your answers: arxiv.org/pdf/2003.00694.pdf
it has a four-term decomposition of separable Werner states
whether that's 'optimal' it's definitely the best i've seen so far
 
9:43 PM
(4-term for two qubits, d^2 for two qudits)
 
 
2 hours later…
11:31 PM
@Semiclassical seems quite advanced.
 

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