Electric motors are easy to make; remember those experiments with wire-wrapped nails? But what’s easy to make is often hard to engineer, and making a motor that’s small, light, and powerful can be ...

One of the most amazing technological advances found in this year’s Hackaday Prize is the careful application of copper traces turned into coils. We’ve seen this before for RFID tags and scanners, but ...

Printed circuit board motors replace wire windings with copper traces and report about 7% higher efficiency, helping cut ...

Mr. Bugeja said that he wanted to create an ultra-compact drone, and started developing the ultra-small motor as a result. However, Mr. Bugeja eventually says that he noticed that "there is a limit to ...