Researchers from the University of Carlos III in Madrid have created a new frictionless transmission gear system using magnetic levitation (Photo: UC3M) ...

Through different mechanical linkages between gears and internal constructs, you can implement batteries, capacitors, diodes, inductors, resistors, switches, transistors, and the like.

Miner Enterprises has released a video demonstrating the role that draft gears play in railcar operation. The new video, “How Does a Draft Gear Absorb Railcar Energy?” provides a look at draft gear ...