The h Bar

Q: Temporary Suspension of the Homework Close Reason

5:06 AM

We have been struggling for a long time with the homework close reason. There are shortcomings to all approaches we have tried so far to change it. I believe one of the problems with this is that actually enacting a different strategy comes with the worry that it'll drastically change the dynamic...

5:49 AM

Hello people

Hey SBM

Hey Avantgarde how are you?

Good here, thanks. And you?

6:07 AM

dead chat

I'm just about okay

Why just ok?

Maybe a lot better than just okay

lol

well, that's good ;)

in Mathematics, 3 hours ago, by Semiclassical

6:17 AM

Be right back

7:14 AM

dead chat

meow

(chat is french for cat)

oh yeah?

7:35 AM

Seriously? Must be confusing

PhyMan

@Avantgarde : could be both dead and alive 😛

Shh, let's not observe the cat

7:54 AM

Okay

2 hours later…

Swapnil Das

9:29 AM

Could anyone recommend me a freshman book for thermodynamics?

Anonymous

10:14 AM

@SwapnilDas as.wiley.com/WileyCDA/WileyTitle/productCd-1118002911.html

ACuriousMind

11:06 AM

@SirCumference "“Light thinks it travels faster than anything but it is wrong. No matter how fast light travels, it finds the darkness has always got there first, and is waiting for it.” " ~ Terry Pratchett, Reaper Man

11:39 AM

2 hours later…

1:17 PM

and then I thought someone is projecting the CMB onto the bottom of a bridge

Kenshin

what's CMB

Q: Why was this meta answer deleted?

Cosmic microwave background

Kenshin

i see ty

NeuroFuzzy

1:50 PM

@Secret oooh did Penrose make that?

It looks like his slides

reverse image searched. Yep, penrose's slides! users.ox.ac.uk/~tweb/00006

Physics Meta

It was an honest question, and I know Bernardo takes the issue very seriously.

bug

2:03 PM

Where and when is everyone while I am here and now?

It seems that one cannot really answer that in a meaningful way when considering relativity.

Well I'm here

Hope that helps

where is here?

give me your spacetime location

(0,0,0,0)

not anymore. I accelerated

that won't change my position in my own rest frame

2:16 PM

how does your rest frame help me? I want to know where you are within my rest frame

but when I accelerate back and forth instantaneously, you seem to be dancing back and forth in time

and place

1 hour later…

Q: Why, in quantum mechanics, is the spherical harmonics different from that defined in seismology?

3:35 PM

well yes

that is how relativity works

even Galilean relativity

Emilio Pisanty

According to Wikipedia, the definition of the spherical harmonics in quantum mechanics and one in seismology are different: Why, in quantum mechanics, is $(-1)^m$ multiplied? The reason is explained in the picture above, but I don't think the explanation is correct because probability is ...

quantum-mechanics spherical-harmonics

whaddayaknow, even the weirdest questions end up getting duplicates

maybe the voices of doom are right, and we are in fact running out of askable questions =P

heather

4:01 PM

hello

Hey heather

Salutations

¿Evento?

Oh, heh

I guess it's a chat session

rob

I guess it's time for the chat session. Usually @DavidZ moderates those

ACuriousMind

4:07 PM

Doesn't seem very sessiony right now, though

::crickets::

4:26 PM

oh okay

What's the topic?

Mostafa

We can start with discussing why the hell is this pair of shoes priced $8,259 ?!

Mithrandir24601

@Mostafa According to the review, they're "very reasonably priced" :P

rob

@Mostafa Five-star review: "I wear these to cut the grass, pick up the dog poo, very reasonably priced"