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andai 23 hours ago [-]
Video title is How Maxwell's Equations Were Discovered, HN's regex thingy changed it to Maxwell's Equations Were Discovered. (My brain's regex changed it back :)
amelius 23 hours ago [-]
Isn't it about time HN replaced the regex by AI?
dvh 21 hours ago [-]
Removing how is stupid. If the "extraneous" how is there, you can still understand it, but when the necessary how is removed, it doesn't make sense or it changes meaning. When I read the title I thought someone is trying to lower the weight of Maxwell's contribution by suggesting he merely discovered them, not "invented" them.
tim333 4 hours ago [-]
Does anyone know why the regex is there? I find it hard to see how english communication is improved by removing random words.
meltyness 21 hours ago [-]
I want an AMA on whoever had an army of upvoter bots on early Reddit such that every front page post would have a dictionary typo.
which explains that magnetism is just an emergent property when you start from Coulomb's law and relativity.
Ono-Sendai 13 hours ago [-]
Nah, special relativity is a consequence of magnetism.
amelius 7 hours ago [-]
You're reading something that isn't there.
selimthegrim 13 hours ago [-]
That's not how Purcell's textbook put it.
Ono-Sendai 12 hours ago [-]
ok? well, textbooks can be wrong or misguided.
selimthegrim 12 hours ago [-]
Um...
kayo_20211030 21 hours ago [-]
Only because it made to the HN front page.
A lot of stilted dialog first. Fine, fine, fine, I get it. Not everyone is a natural presenter.
Then I got to
> How copper and metal plates were combined
and I stopped.
"metal plates"? Copper's not a metal? Some details would be helpful. Zinc maybe?
blovescoffee 20 hours ago [-]
I guess I would read this as “copper” as a primary requirement / necessity and some other metal as a secondary requirement. Are you just being pedantic?
AlexeyBrin 23 hours ago [-]
The original title is much better How Maxwell's Equations Were Discovered. As it is now Maxwell's Equations Were Discovered it sounds like they were just discovered or someone rediscovered the equations.
bee_rider 21 hours ago [-]
I expected a philosophical discussion as to whether scientific models are discovered or invented.
I can imagine the world where this post gets more visibility through a funny regex error than actual equations :)
ck2 22 hours ago [-]
if you aren't afraid of difficult math breaking your brain, I highly recommend this youtube channel "PhysicsExplained" (sorry I forget his actual name but he is brilliant)
he has a recent two-parter on Maxwell and electro-magnetism that are EXCELLENT
but I am not kidding about the math, he starts off slow and gentle and hooks you in, but sometimes after 10 minutes in my brain is screaming and cannot keep up
https://www.youtube.com/watch?v=sDlZ-aY9GN4
which explains that magnetism is just an emergent property when you start from Coulomb's law and relativity.
A lot of stilted dialog first. Fine, fine, fine, I get it. Not everyone is a natural presenter.
Then I got to
> How copper and metal plates were combined
and I stopped.
"metal plates"? Copper's not a metal? Some details would be helpful. Zinc maybe?
he has a recent two-parter on Maxwell and electro-magnetism that are EXCELLENT
* part 1 https://www.youtube.com/watch?v=YqxrlunKCaU
* part 2 https://www.youtube.com/watch?v=wt1KJtD4Qh8
but I am not kidding about the math, he starts off slow and gentle and hooks you in, but sometimes after 10 minutes in my brain is screaming and cannot keep up