Time Machine

The time machine is a machine that can teleport people a time in the past or the future. The concept for a machine first appeared in the 1898 book The Time Machine by H.G. Wells.

Later, I.M. Meen used a prototype machine invented by the Aperture Company, teleporting him back to 1994. He was advised not to make contact with his past self, or it would wipe time out. However, this advice did not stop him from attacking past Gnorris.

It only allows the person to stay in the past for about 18 seconds. It has not yet been used to travel to the future.