Search for:
Science
Archaeology
Ask Us Anything
Biology
Dinosaurs
Physics
Popular Science Videos
Space
The Weirdest Thing I Learned This Week
Technology
AI
Aviation
Best of What's New
Engineering
Internet
Military
Robots
Security
Vehicles
Photography
Environment
Agriculture
Animals
Climate Change
Conservation
Energy
Sustainability
Weather
DIY
Life Skills
Projects
Tech Hacks
Gear
Audio
Cameras
Computers
Fitness Gear
Gaming
Gift Guides
Home
Home Theater
Outdoor Gear
Phones
Tablets
Wearables
MERCH
Cover Art
Store
Newsletter
Search for:
William Gurstelle
More from William Gurstelle
Projects
How To Build A Jacob’s Ladder
By
William Gurstelle
Projects
Re-Create The First Intercontinental Weapon
By
William Gurstelle
Projects
How to build a medieval crossbow
By
William Gurstelle
Projects
Build a gas-powered marshmallow shooter
By
William Gurstelle
Projects
Make these tiny, exploding hydrogen bubbles
By
William Gurstelle
Projects
How to build an hourglass watchtower
By
William Gurstelle
Projects
How to build a solar microscope
By
William Gurstelle
Projects
Make a snowball slingshot and rule your neighborhood with an icy fist
By
William Gurstelle
Life Skills
Throwing knives is growing more popular—here’s how to get started
By
William Gurstelle
Projects
How to build a steam-powered cannon invented by Da Vinci
By
William Gurstelle
Projects
Build Your Own Mini Medieval Siege Weapon
By
William Gurstelle
Projects
Decorate Your Desk With This DIY Personal Sky Puppet
By
William Gurstelle
Projects
I Defend My Backyard With A Bottle Bazooka
By
William Gurstelle
Projects
Build A 300-MPH Ping-Pong Cannon
By
William Gurstelle
Projects
How To Build A Ballistics Box That Measures Fastballs
By
William Gurstelle
Projects
A Mushroom Cloud Made From Coffee Creamer
By
William Gurstelle
Projects
How To Build A Roman Catapult In Your Backyard
By
William Gurstelle
Projects
Hurl Wiffle Balls At 50 MPH—With A Leaf Blower
By
William Gurstelle