This microscope uses touch. Gelsight is a microscope that presses gel into the object of study. Video 10:42 2 votes
The turntable paradox: A ball on a spinning turntable won't fly off as you might expect. In fact the ball will have it's own little orbit exactly 2/7th the angular speed of the table. Here's why. physics Video 9:11 6 votes
Penrose Unilluminable Room is a room with mirrored walls that can't be fully illuminated by a single point source of light mathematics Video 10:24 3 votes
Electric kettles turn off automatically when the water starts to boil. So what happens when you boil alcohol that has a lower boiling point? Video 12:30 6 votes
Laser + mirror + sound — Visualizing sound waves with a laser physics Video 9:56, published Sep 28 2017 6 votes
Revealing motion invisible to the naked eye using Motion Amplification and Video Magnification Video 14:20 6 votes