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To shore up packaging recycling, Maine is making businesses foot the bill
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Environment

Featured in you built what

By Sep 6, 2013
Technology

Ride This: An SUV-Size Insectoid Robot

Creator Matt Denton calls it the Mantis
By Sep 17, 2012
DIY

You Built What?!: An Electric-Assist Chopper-Style Bicycle

A 180-pound, 8.5-foot-long Frankencycle
By Aug 28, 2012
DIY

You Built What?!: A Fire-Breathing, Jet-Powered Dragon

A 50,000-volt stun gun and liquid propane canister lets the flames fly
By Jun 27, 2012
Cars

You Built What?!: A 14-Ton Pizzeria on Wheels

The oven alone in this behemoth is a whopping 5,000 pounds
By Jun 20, 2012
Technology

You Built What?! A Flashing, Tilting Ping-Pong Table to Throw Off Opponents

A group of young designers reinvent ping-pong. Welcome to "swing pong"
By May 21, 2012
DIY

You Built What?!: A Portable X-Ray Machine

In his free time during high school, Adam Munich built himself a machine to see inside other machines
By Jan 3, 2012
DIY

You Built What?! A Wearable LED Television

This 160-by-120 pixel TV will get you stopped at the airport
By Nov 15, 2011
DIY

You Built What?! A Remote-Controlled Hacker Drone

This spy in the sky is designed to hack into communications systems
By Oct 24, 2011
Gadgets

You Built What?! A Six-Foot-Long Camera That Shoots Enormous Photos

This DIY (if you're an expert) camera uses x-ray film for stock
By Oct 4, 2011
DIY

A 3-D Printer That Uses the Sun to Create Glass Objects Out of Sand

Marcus Kayser's Solar Sinter project turns the desert's resources into bowls