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9:20 AM
SN10 managed the landing!
It was, erm, rapidly dismantled a few minutes after landing :-)
But it's still a huge step forward.
 
9:34 AM
morning
 
9:53 AM
@JohnRennie I'm not sure I see the advantage of exploding after landing compared to exploding in the air :P
 
Look on the bright side, it was the fastest turnaround time between launches ever recorded.
Admittedly the second landing was a bit hard :-)
 
oh, so they were fastest to explode two rockets in succession? ;)
 
No, I mean if you watch the landing the explosion launched the starship in the air. It wasn't actually that big an explosion - unlike the previous two landing attempts.
Let me see if I can find the video ...
See 00:30
 
okay, that's one way to look at it :P
 
There was obviously a fuel leak as you could see the flames from the leak immediately before the landing. Hopefully a fuel leak is easy to fix compared to manoeuvres like the flip.
 
 
3 hours later…
1:26 PM
The Witt/Virasoro algebras in string theory are infinite dimensional right?
nvm I'm almost certain the answer is yes
 
@Charlie yes
and other than one might expect, there are also not really groups corresponding to them, see Schottenloher's CFT book for details on that
 
ah, wondered when I might run into something like that
 
2:07 PM
Can thermodynamics be viewed as an Effective Theory?
 
2:30 PM
@newUser Basically, yes
You can derive thermodynamics from statistical mechanics in some limit
Up to maybe some subtleties regarding the second law
 
Hi, so I am solving this problem where I have to calculate the potential due to an infinite chain of particles with charge +q at a mutual distance of 'a' apart. Now, for a point that lies between any two such charges (the point lies on the infinite line somewhere between any two charges), I am getting the potential to be infinite. I checked my calculations and they seem to be fine. Does my conclusion seem fine?
I mean, I am thinking of a physical explanation as to why does this makes sense (if this is in fact true).
 
2:50 PM
Errr I think that's similar to the Newtonian homogeneous universe?
For which yes the potential diverges
Both obey the Laplace equation so it makes sense
 
@ACuriousMind or some other mod
this physics.stackexchange.com/review/suggested-edits/332884 is part of a longish streak of tag-wiki edits by the same user
they're generally good
but they abuse some html formatting such as <br>
maybe one of y'all can contact them to point out that best-practices are to use Markdown formatting instead?
 
@Slereah Yes. As a matter of fact, I am getting potential at a point outside the axis of infinite charges as infinite too. Does that make sense too?
 
I think so, yes
you can find proper explanations for this regarding solutions of the Laplace equations, IIRC
 
@Slereah Thanks a lot. Really appreciate it. Thanks!
 
@EmilioPisanty @nmasanta see the linked message, if you can please consider not using <br> and other HTML formatting since it works somewhat inconsistently across different displays
That should've pinged them, I don't think this is worth writing a mod message over
 
LSS
3:17 PM
Hey guys
 
 
1 hour later…
4:32 PM
0
Q: Bounty on "entrance exam" question

Michael SeifertOn the question Why is the center of a torch beam visible even through an opaque body like my finger? , the OP started a bounty stating I really need this material to answer my entrance examination for BSc. and I can't find this answer anywhere online. I don't really think we should be answerin...

 
vzn
5:24 PM
"not missing the deadline is the crucial thing, whether it blows up or not is a secondary consideration" Elon Musk Reportedly Fires Employees at Will When He's Angry, and Experts Say It's a Sign of Terrible Leadership inc.com/business-insider/…
 

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