NXT

Featured above is a pitching robot, a prototype drawing for a mars rover crater-bot, a mars rover crater-bot, and Tyler McCarthy demonstrating a functional early stage prototype sumo-bot.

Above is a bomb disarmament robot built by Owen Clark and myself. It features sonic and push sensors, along with a motor powered arm tipped with an exacto knife for popping balloons.

After learning so much more about robots and NXT, my definition of "what is a robot" has changed. A robot must be able to carry out orders and react to any situation given in any way it is programmed to do. The crater fighter and bomb disarmament robots both exhibit autonomous controls that enable them to think for themselves and act on their own. I would classify both of them as robots.