Engineer and YouTuber Colin Furze has a reputation for building devices and mobiles that are exceptionally dangerous to operate. Such as this spinning knife-belt, or this 360-degree backyard swing.

What goes up must come down. And what goes way, way up can come down way, way too fast to survive the sudden stop. That’s why [Tom Stanton] built an altitude recording projectile into an oversized ...

Watch a homemade medieval trebuchet fling a ball of fire into the night sky. The counterweight drops, the arm swings, and a flaming projectile arcs across the darkness like a slow-motion firework.

King Edward has asked you to design and build a mighty siege machine—called a trebuchet—that will fling a grape across a far distance. You have been provided with some materials to build your ...

Without any sort of restrictions on designs for trebuchets, these medieval siege weapons are known to send 90 kilogram projectiles over 300 meters. The egg-launching trebuchet contest that ...

In 2009, four 13-year-olds in the bodies of 30-something men built a medieval siege engine in the backyard of a suburban single-family home. The result: bowling balls, old television sets and used ...

Cube Siege has a fantastic desktop trebuchet kit which can be constructed in less than 10 minutes and is capable of flinging ammo with different degrees of speed or power depending on your ...