Most electric cars have a single gear ratio. You probably understand the basic reasons for this, but the math is still super fascinating.

In this exciting DIY tutorial, discover the step-by-step process to make a powerful RPM DC motor from scratch. Perfect for ...

We build up a high winding Z/28 302 small block to see what Chevy's high winding engine is really capable of on the dyno - Super Chevy Magazine ...

Dyson says the CD59 is powerful enough to match a stand-up model. But the real prize might be new applications.

Engineers at Stober have designed and built the PS Two-Speed gear box to quickly and efficiently carve complex parts out of modern metals.