http://www.cleaninglaser.com Cleanliness Is Always Our Priority Wed, 28 Oct 2009 07:56:04 +0000 http://backend.userland.com/rss092 en Laser engraving history: It was in the early sixties that scientists first discovered they could create a light source, focus its energy and have a tool powerful enough to affect a wide range of materials. You can think of a laser as a light source that's similar to a light ... http://www.cleaninglaser.com/looking-for-laser-engraving-information/ Some people out of curiosity, trying to fix a fault or just out of sheer stupidity will look down a laser into the lens where the laser beam comes out. I don't care whether your finger is off the on button, you've taken the batteries out or if the guts ... http://www.cleaninglaser.com/5-things-you-should-never-do-with-a-laser-pointer-portable-laser-or-even-a-laser-module/