A Geek Builds the Most Powerful Laser Ever That Can Melt Through Anything

Majority of the people are familiar with handheld laser pointers which are used for presentations. They are about 5 milliWatts. You can also create superpowered handheld lasers ranging over 50 Watts. Gazing at the beam or reflection of the laser over 0.5 W has the capability of making you blind...