An Einstein-Rosen Bridge device (also known as "Bridge Device") is capable of connecting distant points in space-time, also known as "wormholes". The original device was developed by Albert Einstein and Charles Grant in Camp Eureka around 1947, although it never functioned. The Bridge Device was completed by Kevin Blake("Founder's Day") which caused five town members to travel back to 1947 and an alternate timeline to develop. Douglas Fargo and Henry Deacon applied what they could learn from the Bridge Device to create a Faster than light engine which was successfully tested in "Liftoff".