18:06

Can You Charge A Phone with Marbles?

9:53

5000 Balls vs. Gravity Well Machine

13:06

HUGE Magnet VS Copper Sphere - Defying Gravity- Will a Neodymium Magnet Float Inside?

20:40

Mini horloge géante en marbre qui indique l'heure à l'aide de billes - Encore trop grande

21:10

(3+3+3+3)+3軸トゥールビヨンを作ってみた

27:25

I Built an Office Pod on the Ceiling

22:11

I Built The Ultimate Lego Coin Sorter

12:29

I made a bolt with MAZE threads - Don't strip these threads! - Can you solve the puzzle?