Thursday October 15, 2015

How Many Laser Pointers Would It Take to Kill a Human?

Have you ever wondered how many laser pointers it would take to kill someone? If you answered "yes" to that question, you need help. By the way, this is your answer:

For a laser to kill someone it essentially needs to be hot enough to boil or burn the tissue. It would take about a 1kW laser to boil through someone’s eye to their brain in a reasonable amount of time, meaning they probably couldn’t get away. Each cat toy level laser pointer is roughly 5mW. It would take 200,000 laser pointers all focusing through a lens to an exact point to create a laser powerful enough to kill.