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7:53 AM

Q: Is EM theory appropriate on a physics forum

I'm having trouble posting anything relating to EM theory derived from Maxwell on this site, I'm continually having posts deleted 7 day ban's refusing to accept references particularly my own work, references not modern enough, "no history on this site", "only mainstream physics here". Rarely doe...

discussion

John Rennie

8:44 AM

@JohnT. If I'm working at something really hard I find any form of background noise a distraction. Maybe this is just my powers of concentration declining with age, but from my limited recollections of my student days I'd often go to the library to work precisely because it was silent.

For answering simple questions or other general messing around on the site I have BBC Radio 6 on as it plays lots of new artists and I find it interesting to learn about them. But as soon as the going gets tough the mute button gets pressed.

ACuriousMind

It's odd - when I'm doing physics I find music distracting, but it helps my concentration when progamming

John Rennie

I often have music on when programming as well.

But it has to be fairly bland music. If I put on anything I like I find myself stopping to listen to the music. I find physics a lot harder than programming though.

John Rennie

9:06 AM

@PhysicsMeta I have several times started writing an answer to that meta question then abandoned it when I couldn't find a polite say to say that some of what the OP has written is a word salad not physics.

Srijan M.T

@JohnT. I listen to Lofi , piano ,erhu and sometimes also listen to pop music.

1 hour later…

Slereah

10:24 AM

Why do people always insist on saying "The characteristic of the field must not be two"

and then always talk about R or C

I have literally never seen a field with a non-zero characteristic

ACuriousMind

10:54 AM

@Slereah because stuff like anti-symmetry works differently over characteristic two; in physics you'll probably never see a field with non-zero characteristic

Slereah

11:11 AM

Well yeah but why do they always say it

Just say "the field is R or C"

I'm not gonna think they're talking about the field of polynomials or whatever weird thing

Nihar Karve

it's clickbait for the mathematicians

to make them think the rest of the paper is rigorous

fqq

A lot of "normal" stuff holds for characteristic>2 so mathematicians like to say/use just that I guess

@NiharKarve right

ACuriousMind

@Slereah polynomials aren't a field :P

Slereah

Aren't they?

Ah well

ACuriousMind

$x^{-1}$ is not a polynomial!

you need something like the field of formal Laurent series to have something where every polynomial is invertible

Emilio Pisanty

11:38 AM

sometimes I get votes on old answers that make me want to ask

Don't you have a PhD thesis to write? — Emilio Pisanty 34 secs ago

1 hour later…

Nihar Karve

12:54 PM

@PhysicsMeta this is a new one: "bigots" "discriminating against" EM in favour of promoting quantum

Slereah

1:25 PM

I say send the magnetic fields back to Magnesia

Ancient Magnesia

Anciently, Magnesia (Ancient Greek: Μαγνησία) was a region of Ancient Greece, eventually absorbed by ancient Thessaly. Originally inhabited by the Magnetes (Μάγνητες), Magnesia was the long and narrow slip of country between Mounts Ossa and Pelion on the west and the sea on the east, and extending from the mouth of the Peneius on the north to the Pagasaean Gulf on the south. The Magnetes were members of the Amphictyonic League, and were settled in this district in the Homeric times, and mentioned in the Iliad. The Thessalian Magnetes are said to have founded the Asiatic cities of Magnesia ad Sipylum...

must have been weird being the first caveman to find a magnet

1 hour later…

ACuriousMind

2:29 PM

@NiharKarve it's called quantum supremacy for a reason! :P

@Slereah not sure "magic stone that sticks to some other stones" is all that exceptional if you also don't understand most other physics going on around you

it's just one more weird thing

Slereah

One more weird thing could make you go over the edge in the olden days!

THE SPIRITS