Image courtesy of David Fischer, via Wikimedia Commons
First developed in 1971, Creeper might well be the first computer virus. It infected PDP-11 computers connected to ARPANET, the Defense Department-run precursor to the Internet. Once infected, the computer would display the message, “I’m the creeper, catch me if you can!” Self-replicating but not too dangerous, Creeper opened the door that the rest of this list walked through.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.