In order to blast a hole in something, you have to deposit more energy in a short amount of time faster than the energy can be dissipated away,” Kakalios explains. “If you can do this, then you can overwhelm the bonds holding the material together, and the atoms will fly away. But if the excess energy from the lasers can be carried away as heat, then all you’ll have done is warm up the material.”
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. Each laser pointer (assuming the ones from laser pens since the pen tip is smaller than the cat toy laser) is 5mm across. So if you had 200,000 of them they would be in a grid about 7’ x7’. To get them to focus on a single spot, though, they would need to be in a semicircle with a radius of about 5.5’. So if you wanted to create a death ray with laser pointers, you could buy 200,000 laser pointers, mount them on a piece of a sphere with radius 5.5’, aim them all through a lens and ask your victim to sit very, very still.
Focusing through the eye and to the brain would be the easiest for sure but it would take a pretty exact hit to make sure the person died. The brain stem is right there but it would have to burn through exactly.
https://gizmodo.com/how-many-laser-p...man-1728253506
Multi-billionaires can't be bad businessmen.Quote: