Little Laser Trip Wire circuit presented here can detect movement of people or objects while passing through the laser beam and trigger security alarms as alert signals to those concerned. What is ...

Add a couple resistors, throw it all together on a breadboard and for $1.44 he’s got a super affordable, and functional camera flash trigger! Check out this exploding crayon that was shot with a ...

In a video published last week, American inventor Drake "styropyro" Anthony followed up on a years-old laser pointer project, cramming dubiously-sourced laser parts from China into the housing of ...

Scientists have proposed using lasers to trigger lightening since the 1970s, but have not had ones powerful enough to properly test the idea. Rockets trailing long wires have successfully ...