Waves & Light
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Oct 30, 2026
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3 min read
Brightness isn't the same as photon energy. Plus a 5-minute ghost-writing demo for Monday.
Big Ideas
Oct 22, 2026
2 min read
One Big Idea, five minutes: it's the air, not the doorknob
Oct 15, 2026
1 min read
One Big Idea, five minutes
Oct 1, 2026
Sep 24, 2026
Four elevator situations, a classroom-ready answer key, and your next Forces lesson.
Sep 10, 2026
Equal force does not mean equal acceleration. Newton's third law for Forces week.
Sep 3, 2026
The most famous physics fact in America is wrong, and a physicist proved it with his own forehead
Back to School
Aug 20, 2026
By the time the sun touches the horizon, it's already below it — the atmosphere is running a replay. Plus a 2-minute demo with a mug and a coin.
Aug 13, 2026
The Perseids peaked under a new moon — and the glow isn't what most people think
Summer
Jul 23, 2026
It's been lying to you all summer. The physics is rude.
Jul 9, 2026
A murmuration is a physics problem. Physicists in Dresden just cracked it — and the solution involves imaginary birds.
Jul 2, 2026
The sequel to last week's secret about water.
Jun 25, 2026
A short one, smuggled out before sunrise.
Jun 18, 2026
5 min read
A physicist some call "the next Einstein" thinks everything you see might be written on a flat surface. Here's that idea, explained from zero.
