5000 Balls vs. Gravity Well Machine

I Made a Ball Rollercoaster that's also a Clock

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

I Built a Marble Machine that Makes Pixel Art

Professional Engineer versus the FINAL LEVEL of Poly Bridge 3...

My Puzzle Robot is 200x Faster Than a Human

Destroying Lego Towers

I bought the most SATISFYING TECH on the internet.

Making an atomic trampoline

Six questionably legal pencil sharpeners

This Car Travels Farther Than You Push It

I Made 9 Different Mechanical Displays

EASY Pinewood Derby Car WINS using Science!!!

I 3D Printed a $1,175 Chair

Can You Charge A Phone with Marbles?

I Built A Secret Room At Work (Now I live in the ceiling)

Infinite LEGO Candy Factory...

I sent robot forgeries to a handwriting expert

Making another pickproof lock (but better)

LEGO Elastic Energy: Making Power From Rubber!

I Automated My Typewriter…