Not all automatic transmissions are the same. Modern cars could have a standard, dual-clutch, or CVT automatic transmission, but their gear levers would most likely share the standard P, R, N, D ...

As shown in the picture, a planetary gear ... visually stand out is the beautiful ornamental see-through design of the dial plate and hands made from laser-cut wood. Despite the mechanical ...

The creation of the unit entailed the development of a magnetic gear reducer and corresponding frictionless magnetic axles. Aimed primarily for use in spacecraft due to its extended mechanical ...

All images courtesy of Malcom Burrows To the best of our knowledge, the mechanical gear—evenly-sized teeth cut into two different rotating surfaces to lock them together as they turn—was ...