Mindstorms, a workshop where kids are taught how to build motorized Lego robots and vehicles, requires reservations made the day of a visit.

As a mother and a Ph.D. in computer science, I find building Lego robots to be a real gas.

At one station, Lego robots in a display case that looks like a pinball machine are manipulated by yet more buttons.

He and Jack built Lego robots, Lego towers and Lego helicopters.

That code is now at the core of Lego Mindstorms, kits for the creation of programmable Lego robots.

A Lego robot that can be controlled by Internet and computer, Red Rover reaches about 400 classrooms that have paid $700 each to take part.

But a 37-year-old hobbyist has added a twist, literally, to building-block construction: he has created a Lego robot that solves Rubik's Cube.

Right away, he realized that the challenge would lie in building a Lego robot precise enough to twist a cube accurately yet strong enough to do so without deforming itself.

The crew successfully experimented with the Delay-tolerant networking protocol and managed to control a Lego robot on earth from space.

Mr. Fudd, for example, built a Lego robot to sort his pocket change and another to turn on a light in his apartment when it gets dark.