The h Bar

8:26 AM

@RewCie what could the date be I wonder? :-)

today's weather report:

we're going the way of the dinos, it seems

Leaving aside the extinction event for now, I see you too are affected by the wind sweeping down from the arctic.

In the UK the temperature has plunged by over 10°C!

Actually more like 15°C

yeah, it was a few extremely warm days (for March) and now it's getting colder again - today's still pretty nice, though

The forecast for Chester for tonight:

It was about 15°C last night!

Apologies for ranting on about the weather - we English do this.

8:47 AM

no worries, it's one of the few topics everyone at least as some sort of opinion on :P

9:03 AM

Take your conspiracy theories elsewhere.

3 messages deleted

9:31 AM

@user85795 suppose 10% of people in the UK get covid and 1% of those people die. That 1% death rate is mentioned in that PANDA talk, so I'm giving figures that PANDA agree with.

Then that means 0.1% of people in the UK will die.

PANDA say this isn't worth the economic disruption caused by the lockdowns.

But 0.1% of people in the UK is sixty thousand people. So what they're saying is that th deaths of sixty thousand people don't matter. WTF! ?

@JohnRennie according to them; yes sir

Well they're a bunch of tw*ts. How would you like it if your mother was one of the 60,000 who died?

I found the lack of a lockdown figures for Sweden interesting.

I think he's arguing more for the disruption caused by the lockdown.

Yes, he's saying that the disruption is worse than people dying.

exactly

9:40 AM

That's because it isn't his mother dying.

true

I read a story in the news that a man watched his mother and father die of Covid ; within 5 minutes of each other, in a hospital in Florida.

What PANDA are saying is not completely ridiculous because there are all sorts of complicated issues involved. For example there has been an increase in suicides and it has been claimed (but not proved) that this is due to the extra stress caused by the lockdowns.

Though the increase is small compared to covid deaths, and very small compared to what covid deaths would be if everyone in the UK got infected.

But their conclusion that we should have just let everyone get covid and 1% of those people die is absolutely appalling.

They ask why the old health regulations were thrown out?

"lockdown" was not part of them

12 mins ago, by user 85795

I found the lack of a lockdown figures for Sweden interesting.

Thanks for listening sir @JohnRennie

:-)

10:50 AM

@ACuriousMind It has now changed to "alien invasion" - apparently we're being rescued from the meteors from our new overlords

too bad covid was not a joke

@ACuriousMind :-) The British met office has too stiff an upper lip for such high jinks!

@JohnRennie well, this is a company-internal tool that also displays weather, it's not some official thing

Wow! a list of people who love palindromes:

> Nell, Edna, Leon, Nedra, Anita, Rolf, Nora, Alice, Carol, Leo, Jane, Reed, Dena, Dale, Basil, Rae, Penny, Lana, Dave, Denny, Lena, Ida, Bernadette, Ben, Ray, Lila, Nina, Jo, Ira, Mara, Sara, Mario, Jan, Ina, Lily, Arne, Bette, Dan, Reba, Diane, Lynn, Ed, Eva, Dana, Lynne, Pearl, Isabel, Ada, Ned, Dee, Rena, Joel, Lora, Cecil, Aaron, Flora, Tina, Arden, Noel, and Ellen.

source: reddit

1 hour later…

12:21 PM

do you guys think that "in my opinion, everything in nature occurs mathematically" is an idiomatically correct translation of this?

> searching through literally millions of books

:-/

1:17 PM

@user85795 better ask Latin Language for expert opinions, but I find "occur mathematically" a terrible translation. Something like "all things in nature happen through mathematics" seems to fit better.

Will do, thanks.

user2723984

1:42 PM

Hello, if such thing exists, does anybody know of an at least semi-rigorous introduction to topological phases of matter? I'm not ready for tensor fusion categories yet, whatever they are, but it seems it's either that or handwavy "delocalized entanglement" and "topological phases are phases with topological excitations" and some stuff about dancing

2:03 PM

Hello it is me after 2 years

Welcome back!

Pretty sure no one remembers but anyhow

I do.

I am sad to say I do not

slereah?

but yeah, I'm nobody...

nope

2:05 PM

Aiyo

Oh are you the 8th grader that asked a lot of questions and got banned

Anyhow I am a ChemE major and wanted to understand how tornadoes swirl

Any relevant reference books or papers?

Q: How much editing of a question is acceptable? (e.g. Chicken Question)

@AvyanshKatiyar Have you tried starting at Wikipedia (and following the sources in case you want the actual papers)? The process of forming storms like tornados is called cyclogenesis.

user 726941

2:49 PM

@ACuriousMind sorry about the conspiracy theorizing.

Physics Meta

In regard to the chicken question meta post one of the answers included this paragraph: This opinion is based purely on the actual question, and ignores the silly story. Surely the silly story can be edited out of the question, and corresponding silliness in the answers can be edited out as well...

3:28 PM

@ACuriousMind Yes I have been able to find a couple of relevant papers

Thanks

1 hour later…

RewCie

4:57 PM

@JohnRennie hehe, I know :-) 😹

@ACuriousMind 😱🙀 you saw meteor shower???

Physics Meta

Q: How to set a bounty

I'd like to set a bounty to one of my questions but I can't find a link for that. Is that because I have commented that question myself? The question is this.

support bounty

2 hours later…

satan 29

6:44 PM

did stack exchange play any sort of april fools prank?

@satan29 yes, try copying some text on SO

satan 29

LMAO

2 hours later…

Jbag1212

9:11 PM

We say that the generators of SU(2) form a Lie algebra? For example, consider the pauli spin matrices. Is this because we can add/subtract them, and they obey the commutation relations. If so, why do we care? When do we actually add/subtract these things together?

9:22 PM

@Jbag1212 the commutator of two Lie algebra elements measures how much the effect of the two transformations they correspond to differs if you first do one of them and then the other compared to the opposite order

that is, for the rotation algebra, it measures how different it is to first rotate around the i-th axis and then the j-th axis compared to first rotating around the j-th axis and then the i-th axis

Jbag1212

I understand what a commutator is, but I guess more what I am asking is, "why do we care that it is a Lie-Algebra"?