So maybe you got a fidget spinner in your stocking this year ... then uses an electromagnet to provide the correct push at the right time. A practical brushless motor will likely have more ...

He created the Kinetic Driver, a fidget spinner precision screwdriver designed to use its rotational momentum to loosen and tighten screws. The main difference between the Kinetic Driver and other ...

Sounds great, right? But there's one serious drawback. It's causing major controversy in schools. The original fidget spinner is a three-pronged plastic device that uses ball bearings to enable ...