William Gurstelle

More from William Gurstelle

DIY

How To Build A Jacob’s Ladder How To Build A Jacob’s Ladder

By William Gurstelle

DIY eye in the sky

DIY

Re-Create The First Intercontinental Weapon Re-Create The First Intercontinental Weapon

By William Gurstelle

How to build a medieval crossbow

DIY

How to build a medieval crossbow How to build a medieval crossbow

By William Gurstelle

Build a gas-powered marshmallow shooter

DIY

Build a gas-powered marshmallow shooter Build a gas-powered marshmallow shooter

By William Gurstelle

Make these tiny, exploding hydrogen bubbles

DIY

Make these tiny, exploding hydrogen bubbles Make these tiny, exploding hydrogen bubbles

By William Gurstelle

How to build an hourglass watchtower

DIY

How to build an hourglass watchtower How to build an hourglass watchtower

By William Gurstelle

How to build a solar microscope

DIY

How to build a solar microscope How to build a solar microscope

By William Gurstelle

snowball slingshot

DIY

Make a snowball slingshot and rule your neighborhood with an icy fist 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 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 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 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 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 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 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 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 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 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 Hurl Wiffle Balls At 50 MPH—With A Leaf Blower

By William Gurstelle