When Conservation of Energy FAILS! (Noether's Theorem)

________________________________
VIDEO ANNOTATIONS/CARDS

Lagrangian Mechanics:

What the HECK is Energy?

Noether's Theorem Explained:
________________________________
RELATED YOUTUBE VIDEOS

PBS Space Time on Energy Conservation:

Physics Girl on Energy Conservation:

Minute Physics on Energy Conservation:
________________________________
SUPPORT THE SCIENCE ASYLUM

Patreon:

Advanced Theoretical Physics (eBook):

Merchandise:
________________________________
HUGE THANK YOU TO THESE PATRONS

Warden of the Asylum:
YDT

Asylum Counselors:
Matthew O'Connor

Asylum Orderlies:
Daniel Bahr, William Morton, I'mKorgThisIsMiek

Einsteinium Crazies:
Albert B. Cannon, Eoin O'Sullivan, Tim Ruffles, LT Marshall Faulds, Ilya Yashin, Wacky

Plutonium Crazies:
JKLMN Anderson, Al Davis, Kevin MacLean

Platinum Crazies:
Fletch, Stephen Blinn, Felipe Cruz, Vittorio Monaco, Mikayla Eckel Cifrese, Evgeny Ivanov
________________________________
OTHER SOURCES

________________________________
LINKS TO COMMENTS

________________________________
IMAGE CREDITS

NASA Big Bang:

Nuclear Explosion:

Emmy Noether:
________________________________
TIME CODES

00:00 Intro
00:21 Conserved Quantities
01:14 Energy Transformation
01:58 Conservation of Energy
02:27 Noether's Theorem
03:06 Time Translation Invariance
03:39 Principle of Stationary Action
04:20 The Spacetime Lagrangian
05:07 Cosmic Microwave Background
05:46 Dark Energy
06:37 Summary
06:57 Outro
07:21 Sponsor Message
08:19 Featured Comments

[AndrewDotsonvideos]

Really helpful as I insist on only learning through squirrel motion examples.

[DanteKG.]

Emmy Noether is quite likely the most intelligent person of the 20th century. Brutally intelligent.. Physics had a crisis that no one could solve so they asked her for help.. She proceeded to formulate her theorem which links continuous symmetries to conservation laws. Her field is abstract mathematics (abstract algebra to be precise) and was described as reasoning about operators in a completely different way than her peers. She was a professor in the most prestigious math college in germany but because women weren't allowed to teach at college back then she had to officially work under the name of a collegue and without pay...
For years the most brilliant mathematician was teaching students at the top faculty for mathematics and she did it for free

[DavidFMayerPhD]

You are the ONLY person I have found on the Internet who CORRECTLY explains Conservation of Energy and Wave Function Collapse. Kudos to you.

[IllogicalMachine]

"Potential energy is stored in the balls."
-Particle Physicists

[FLS]

Weird how this is still widely regarded as an exact law of physics, altrough it is known to not hold for a long time. Another one is the 2nd law of thermodynamics: there's an extremely small, but non-zero probability for entropy to decrease in an isolated system.

[planckvanilla]

03:05 I love how it shows the earth burning a 100 years from now.

[otakuribo]

You have a gift for turning complex physics math salad into intuitive concepts with these animations; like the energy bar changing over time to show where the energy is but that the overall amount of energy you're looking at is still the same.

[randomisedrandomness]

Ooooohh, so that's why squirrels in my park explode...

[raphaelalcantara]

This ist the only channel in YT that I watched every single episode, best science channel!

[LookingGlassUniverse]

Wow, amazing video Nick! I didn't know that! Super interesting :)

[mrudulvemuri]

Somebody said "We imagine that the universe is strange. But, in reality the universe is stranger than we can imagine." The universe is under no obligation to make sense to us.

[ibanix]

PETA called, they're asking about your non-conservation of squirrels

But seriously, great episode

[SaberTooth]

I really like seeing videos that call back on previous videos to allow for a complex subject to effectively be communicated in a quick video.

[nokian]

I just want to say that you're on the same level to me as "physics videos by eugene khutoryansky". Both you and Eugene do a fantastic job at teaching difficult subjects and making abstract AF concepts actually "click" and finally make sense. I've never had as many "eureka I finally understand this" moments from the same creator as I've had from watching your videos.

If Richard Feynman was alive and had a YouTube account, I'm sure that he would have been a great fan of your content.

Keep up the great work. The world needs more videos like yours.

[bhaswatidasgupta]

I just wanted to say thank you. 😊 Because every time I watch your videos I fall in love with Physics, Mathematics and this Wonderful and Informative videos. Keep up this great work.

[SilverAlex]

wow the thumbnail was genious! I always loved your conservation of energy running gag, so this ep feels like a conclusion to a plot line that you have been setting for some years.

Also its good to see some love for Noether, she was a true maths and psychics badass

[bucke]

I lose my conservation of energy every morning when I wake up.

[herbie]

I never thought about those two exceptions changing the actual quantity of energy in the universe, but that seems obvious now. Thank you for pointing that out! Your videos are a joy to watch as well as informative.

[alexanderalden]

I died at “conservation of energy is sometimes violated”

[yadav-r]

Not a Physics student, you explain things so clearly & in such a digestible way, I enjoy watching it. even though I might not use that in a professional capacity. Great to find your channel. Good Day.