YouTuber Builds the World's Most Powerful Handheld Laser Pointer and It Can Instantly Melt Glass
The handheld laser pointers you can buy at office supplies stores are legally required to be no powerful than 0.005-watts, and most fall well below that threshold so they're relatively safe to use. With that as a reference, you have a better understanding of just how terrifying this 100-watt handheld laser pointer"