How many laser pointers can have high damage?
Through our research, we found that concentrating multiple laser Pointers in one place with a single lens can produce powerful beams of light. Powerful lasers hit your eyes and melt your brain. To kill a person with a laser, you need enough heat to boil or bake tissue. Heating the brain through the eyes for a long time requires a laser of about 1kW, and the target will not escape in a short time. The power of the cat toy Laser pointer is about 5mW. In other words, if you wanted to create a laser powerful enough to kill, you would have to focus 200,000 laser Pointers on a single point with a single lens. Each beam is independent of each other, in principle there should be no problem, each beam should reflect normally.
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There are two kinds of pressure effects caused by laser irradiation: one is the pressure formed by the radiation pressure of laser itself, called primary pressure. Although the radiation pressure of the laser itself is very weak, the energy is very concentrated and the pressure is quite high. The other laser, when applied to biological tissue, creates secondary pressures. This is because a strong laser is applied to biological tissue. In addition to photopressure, there are vapor backshock, internal vaporization pressure, thermal expansion, ultrasonic pressure, and electricity. Caused by many factors, such as strain pressure. So 200,000 laser Pointers, side by side about the size of a can, squeezed the person accurately photographing the brainstem, but didn't work. If you multiply it by a certain amount, the person will die and be found. This is dangerous, so please don't try this at home.
2021-10-06 09:49:28
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