This mind-blowing trick demonstrates a simple yet surprising effect that challenges how we usually understand everyday ...

Most robot headlines follow a familiar script: a machine masters one narrow trick in a controlled lab, then comes the bold promise that everything is about to change. I usually tune those stories out.

Fidget-spinner tricks used in simple demonstrations show motion and balance in entertaining ways. Trump threatens Raytheon's business with the US government Ex-FBI agent breaks down Minnesota shooting ...