Cars that are safe

There are some cars which are made to be safe, like in the movie. The main difference: the actual ones use ultrasonic sensors only for backing up. They use radar, which use light in wavelengths that can't be seen, for other purposes. The rest of the way radar works is basically the same. The biggest problems include having the car not warning the driver that he is passing by a lamppost.

This is a post from Alpha Rex. (I'm posting a lot! The other people should be posting some!)

The wires for the NXT are like telephone jacks, with one difference: the snap-connector on top is to one side, not in the center, to prevent kids from connecting their robots to the telephone line.

Brrriiiiing! Brrriiiiiing!

person: Hello?

NXT: Hello.

person: Who is this?

NXT: Alpha Rex.