Featured in DIY
The Best Home Theater You’ve Never Heard of
Digital projectors inexpensively deliver massive HDTV-quality images--if you don't mind a little sweat.
Trickin’; Out the Treo 600
This year's must-have convergence device gets a lot cooler with a few essential extras.
Tinkering with Tivo
Of course you love your TiVo. Here's how to love it 190 percent more, and then some.
No one knows how to stop it, but at least you can slow it down--the latest tech for protecting your inbox.
Getting the Lead In
Unlock the mystery of the pencil by turning out a few of your own.
Heart-rate monitor with built-in GPS gives endurance athletes their first accurate tool for tracking pace and distance.
Ignorance = Maglev = Bliss
For 150 years scientists believed that stable magnetic levitation was impossible. Then Roy Harrigan came along.
The Subatomic Assembly of H2
Tired of waiting for our fuel of the future to come of age? Grab a cup of water and a 9-volt, and read on.
Making Small Change Smaller
The art of shrinking coins using copper coils, magnetic fields and enough energy to power a small city.
Smelting in a Microwave
Our scientist zaps tin and silver, shatters glass, and arcs his oven to prove a point.