The electric motor has its limits ... which you may recall from his micro Tesla turbine or nitro-powered rotary tool. He sure likes things that spin fast.

The tools included in the recall are the Dremel® MICRO™ Model 8050 Rotary Tool with date codes 407 through 505. You can find the label indicating the date code on the back of the tool.

To start, it's Dremel's first brushless rotary tool. Thanks to its more modern motor design, Dremel claims the 8260 outputs 20 percent more power than the 4300, its most powerful corded model.

Makers, hobbyists and engineers might be interested any new rotary multitool kit featuring a powerful handheld power tool with five-speed adjustments and a motor capable of 25,000 RPM. Weighing ...

Previous attempts to harness this transfer of angular momentum for a rotary motor have been hampered by the weakness of the interaction between photons and matter. Optical forces induced on a light ...