my youtube algorithm kinda sucks rn, recommend me some
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In this video, we explore the mystery of spinors! What are these strange, surreal mathematical things? And what role do they play in physical reality? We'll talk about the algebra of SO(3) and SU(2), and the profound physical implications of spinors, particularly as it relates to spin-statistics and the stability of matter!
Video notes PDFs available for download on Patreon:
 / richardbehiel
All support is highly motivating and greatly appreciated!
Recommended reading: "An introduction to spinors" by Andrew M. Steane: https://arxiv.org/abs/...
For a more advanced and comprehensive treatment of spinors, see "Spinors and Space-Time" by Penrose. The homotopy class animations in SO(3) were based on Section 1.5 of that book.
To learn more about the Spin-Statistics Theorem, see "Pauli and the Spin-Statistics Theorem", by Ian Duck and E. C. G. Sudarshan.
Also, check out the wonderful YouTube series "Spinors for Beginners" by EigenChris!  / @eigenchris
Chapters:
0:00 Intro
3:08 Topology Warmup
9:22 Axis-Angle Representation of 3D Rotations
13:15 Homotopy Classes of Loops in the Axis-Angle Space
22:50 The Algebra of Rotations, SO(N)
33:48 SU(2)
39:35 SU(2) Double Covers SO(3)
49:15 Exploring the Mystery
1:01:20 Superconductivity
1:05:00 Let's get Existential
1:07:50 Conclusion -
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FredrikkNudsen's down the rabbit hole, just pick any.
I really enjoyed the one about computers beating humans in chess - Deep Blue -
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We need to get off YouTube's monopolistic dick
Agreed. Check out Grayjay:
https://grayjay.app/
https://gitlab.futo.org/videostreaming/grayjayIt's a client for following creators across platforms while the user retains control. YouTube is one of the platforms Grayjay can access but you don't have to let YouTube play adverts, track you, etc. It lets users turn the screen off and keep playing audio, bypass intros or sponsored ads, download whole videos, and other quality of life features.
You can also avoid YouTube entirely and only stream from PeerTube, NewPipe, SoundCloud, etc. You just tap the plugins you want and it respects your choices.
It's still under active development during an ongoing arms race with YouTube but I've been using it for over a year and have only encountered two bugs that kept me from using it. It's been a refreshing experience overall and I find myself watching more of the stuff I care about, more meaningfully supporting the artists I care about, and disallowing Google to abuse those interactions.
I'm not affiliated with them in any way. Just a happy convert.
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Any Austin is pretty great, he talks about videogames but more like checking the unemployment levels in skyrim or following powerlines in GTA to see if the infrastructure makes sense
VideoGameDunkey is a certified classic
MiniMinuteMan does some cool paleontology videos, as well as some good conspiracy debunking
Explosions&Fire is a chaotic Australian chemistry channel (along with the sister channel Extractions&Ire).
Rybonator makes custom dice from resin and is a great choice for DnD fans and dice goblins
Natural Habitat Shorts is a hilarious animation channel that focuses on real animal facts
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Syd and Mackey for cycling.
Jammy Gits for adventure.
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Have you ever seen Internet Comment Etiquette with Erik?
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animated fight split into 2 episodes
There are 82 other episodes in the series, but they focus more on story
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I recommend turning the algorithm off and only watching what Lemmy tells you to.
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https://www.youtube.com/playlist?list=PL2ISTNaXIkzC2s9OMVn2EnkT_c3g7JU9-
Toolroom takeover 2025 is a pure bliss of an event. A bunch of amazing machinists and metalworkers came together and made creative gifts for each other. -
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I like this one: https://youtu.be/PTApsEoWVlI
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Undecided with Matt Ferrell - new energy tech developments
Technology Connections - how contemporary and retro tech works
City Nerd with Ray Delahanty - public transit, city planning, housing affordability, city walk throughsI believe they're on Nebula as well
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I recommend turning the algorithm off and only watching what Lemmy tells you to.
This is what I do
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Technology connections
Boring history to sleep
Dime store adventures
Qxir
Peter Santanello
Ichabod Slice
Epimetheus
Justin Chase
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I like the second thought channel,
Jessie Welles folk music, democracy now, Seth Meyers closer look, daily show, John Oliver and crayon capital -
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Here is a funny gaming PC that has its gpu sitting in a attached external compartment
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Simple Living Alaska, following a homestead couple that intersperses their adventures with their large garden.
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A tutorial on how to drink water
