Despite what many expect, laser beams don’t remain as straight lines forever. All light diverges over a distance ... of a Galilean telescope to take the small beam of his 405-nanometer laser ...

As with past innovations, the new technology served as a force multiplier, which led to efforts to counter the threat. Ergo, ...

As [Brad] over at the LVL1 hackerspace watched his friend build a Laser tag/tazer mashup for Makerfaire Detroit 2012, he noticed these new laser tag guns were really cool. These Light Strike guns ...

Cheap drones are exposing gaps in current air defense systems, and countries in the Middle East are looking to laser weapons ...