William Gurstelle

More from William Gurstelle

Jacob's Ladder
DIY

How To Build A Jacob’s Ladder

By William Gurstelle

DIY eye in the sky
DIY

Re-Create The First Intercontinental Weapon

By William Gurstelle

How to build a medieval crossbow
DIY

How to build a medieval crossbow

By William Gurstelle

Build a gas-powered marshmallow shooter
DIY

Build a gas-powered marshmallow shooter

By William Gurstelle

Make these tiny, exploding hydrogen bubbles
DIY

Make these tiny, exploding hydrogen bubbles

By William Gurstelle

How to build an hourglass watchtower
DIY

How to build an hourglass watchtower

By William Gurstelle

How to build a solar microscope
DIY

How to build a solar microscope

By William Gurstelle

snowball slingshot
DIY

Make a snowball slingshot and rule your neighborhood with an icy fist

By William Gurstelle

Throwing knives is growing more popular—here’s how to get started
DIY

Throwing knives is growing more popular—here’s how to get started

By William Gurstelle

Da Vinci’s Architronito
DIY

How to build a steam-powered cannon invented by Da Vinci

By William Gurstelle

A Boy And His Trebuchet
DIY

Build Your Own Mini Medieval Siege Weapon

By William Gurstelle

Decorate Your Desk With This DIY Personal Sky Puppet
DIY

Decorate Your Desk With This DIY Personal Sky Puppet

By William Gurstelle

William Gurstelle shoots bottle bazooka
DIY

I Defend My Backyard With A Bottle Bazooka

By William Gurstelle

Build A 300-MPH Ping-Pong Cannon
DIY

Build A 300-MPH Ping-Pong Cannon

By William Gurstelle

How To Build A Ballistics Box That Measures Fastballs
DIY

How To Build A Ballistics Box That Measures Fastballs

By William Gurstelle

A Mushroom Cloud Made From Coffee Creamer
DIY

A Mushroom Cloud Made From Coffee Creamer

By William Gurstelle

How To Build A Roman Catapult In Your Backyard
DIY

How To Build A Roman Catapult In Your Backyard

By William Gurstelle

Wiffle ball cannon
DIY

Hurl Wiffle Balls At 50 MPH—With A Leaf Blower

By William Gurstelle