Ever want to build your own RC vehicle? You are in control of its design, and as simple to use a Lego. All you need is a Lego NXT, a computer with a Bluetooth dongle, and control software. This is a ...

Now you can sit back and mow your lawn with a Wii remote controller. Researchers in Denmark call it the Casmobot. It's pretty basic: Tilt the remote forward, the mower drives forward. Tilt it back, ...