Why spend thousands on a laser cutter/engraver when you can spend as little as $350 shipped to your door? Sure it’s not as nice as those fancy domestic machines, but the plucky K40 is the little laser ...

Earlier this year, I bought one of those K40-style laser machines that was listed at a ridiculously low price, and it arrived broken. Well, let me qualify that: the laser tube and the power supply ...

Electrical engineers at Stanford University have created nanoscale optical lines that use much less power than the laser connectors found in computers today. It could be the key to the next generation ...