Subscribe to Up and Atom! https://www.youtube.com/channel/UCSIvk78tK2TiviLQn4fSHaw/ or start with Jade's video on quantum tunnelling: https://www.youtube.com/watch?v=WPZLRtyvEqo
You've got a painting and two nails. Can you use both nails to hang the painting so that if either nail is removed, the painting falls? That's the puzzle: in this week's guest video, Jade's going to solve it with maths.