The law of conservation of angular momentum states that the total angular momentum of a system is constant whenever the net external torque on that system is zero. The law does not require the system (or its parts) to be rigid. That is why a figure skater spins faster when she pulls her arms in, and why a spinning solid that crumbles no longer rotates as a single object: the same total angular momentum is then carried by the motions of the fragments about the original center of mass.
Livestreamed on Wednesday, September 16, 2026 at 10:00 AM PDT.
Timestamps (generated by Grok AI):
0:00 Intro, audio check & going live
2:00 Website rebuild, Hive/Telegram mirroring
3:30 Melissa Doi 9/11 call analysis
5:00 Live coding site features (text size, tools, ads)
19:00 OpenAI Navier-Stokes / AI agents discussion
39:00 Ryan Bannister article & angular momentum intro
1:09:00 WTC debris movement (lateral, not fountain)
1:13:30 Conservation of angular momentum — rigid body vs. fragments
1:17:30 Critique of Ryan, Norman, Fetzer & “spooks”
1:26:00 Fetzer Zoom Q&A breakdown
1:42:00 Animations of a spinning object crumbling
1:48:00 Physics demo: angular momentum after disintegration
2:00:00 Site updates, copyright claim, monetization
2:13:00 Wrap-up
- Watch on: 3Speak · YouTube · Rumble · Odysee · BitChute · X
- See more: MES Math Q/A YouTube Playlist
- More math: mes.fm/math
Originally posted on the Hive blockchain →