Most of the time we feature hokey film footage in our Retrotechtacular series, but we think this hack is as cool today as it was fifty years ago. [Clint] wrote in to tell us about Operation Red Line.

The problem with scientific papers is that they hide about half of the interesting stuff. Recently, a group of scientists set out to directly measure a property of a laser, something that goes by the ...

Here’s a way of transmitting audio that makes it virtually impossible for someone else to listen in. Instead of sending radio waves bouncing all over creation, this uses the focused light of a laser ...