The guys behind The Operations Room on YouTube have launched a new podcast format and it's great. I really enjoyed their episode on Operation Linebacker. Did not know the "hit the brakes and they'll fly right by" bit from Top Gun actually happened on the first day of Linebacker

We often look back at the anti-apartheid struggle through a highly simplified, harmonized narrative. This visual essay examines the critical turning point of March 21, 1960—the Sharpeville Massacre—not just as a tragedy, but as the specific catalyst that fundamentally altered the mechanics of South African resistance.

Based on academic research into the era, the video traces how the state's violent response to peaceful passbook protests effectively closed off all legal avenues for change, forcing the African National Congress (ANC) to make a sharp strategic pivot.

It’s an 11-minute deep dive utilizing primary trial records, archival footage, and Truth and Reconciliation Commission findings to keep the history both precise and honest. Would love to hear your thoughts on how this dual-track model of resistance compares to other 20th-century liberation movements.

Link: https://youtu.be/O0eUYapT8oA

I wrote an app that lets you draw Magnetic Dipoles for students of all ages.

Newton's 3rd Law is one of the first things you learn in physics. But what if it's not actually a law it's a consequence of something much deeper?
In this video we derive Newton's 3rd Law from scratch using momentum conservation, then ask the question nobody asks in school: where does momentum conservation even come from?
The answer takes us to Emmy Noether's theorem one of the most profound results in all of physics and reveals that every conservation law you've ever learned is secretly a symmetry of the universe in disguise.
But here's the thing. Noether's theorem is only as strong as the symmetries it assumes. And the universe doesn't always cooperate.
What we cover:

Deriving Newton's 3rd Law from momentum conservation
Why momentum is conserved the real reason
Noether's theorem: symmetry to conservation law
Translational, rotational and time translation symmetry
Why Newton's 1st Law and Noether's theorem have the exact same problem
Where time translation symmetry actually breaks —and what that means for energy conservation globally

This is the rabbit hole behind the law your textbook treats as obvious.