levitating frog
Why Hacker News recommends it
Cited as the canonical eye-catching demo of diamagnetic levitation, and sometimes used as a joke in magnet threads.
What it is
A short clip of a frog levitating inside a roughly 10 tesla magnetic coil, demonstrating diamagnetism.
Recommended by 1 HN commenters across 1 different months, 2012 to 2014.
What Hacker News said
Recommends ThePhysicist · 2014-02 · on “What Happens When You Drop A Magnet Inside A Copper Tube [video]”
If you think that's cool you should have a look at this frog: [this video] The physics behind this are explained here: [LINK]