The Known is finite, the unknown infinite; intellectually we stand on an islet in the midst of an illimitable ocean of inexplicability. Our business in every generation is to reclaim a little more land.  -T.H. Huxley, 1887


  250 mW Laser

This is a 250mW laser. That is all. They are cheap. They work. Who knows if it is actually 250mW, but it burns stuff.