The “Spin Cycle” is an amazing electric bicycle built using a motor salvaged from a washing machine; when the puns are this perfect you have to roll with them. [jimminecraftguy’s] creation is one of ...

Speed, torque, and horsepower are three inter-related parameters in motor control. The speed of a motor, measured in revolutions per minute (rpm), defines a motor's ability to spin at a rate per unit ...

Higher motor efficiency is a Good Thing – It’s unlikely that any design engineer ever said, “Gee, if only I could find a really inefficient motor for my next design.” When I was working on an article ...