When people restore old typewriters, they mostly just make them (1) look new and (2) usable again. Joe Hounsham from Plymouth University in the UK, however, had other ideas in mind: he took one and upgraded it to connect to the internet. More specifically, Hounsham's device (called Dico) connects you to a random person from a chat room -- in fact, it starts looking for a stranger to talk to as soon as its ultrasonic sensor feels you approaching. The other person's messages are processed by an Arduino microcontroller, which controls the solenoids that pull down the keys on the typewriter. Yes, a piece of paper serves as the device's "screen," and to reply, you need to type on it, too.