Can laser treatment really reverse scalp hair loss? green laser pointer treatment may thicken existing hair, thereby inhibiting the temporary growth and density of hair. The only three ways to increase hair density are hair transplantation, hair micro-pigmentation (creating the illusion of shaved head/creating dark shadows between existing hair) or wigs.
Is it possible to destroy the earth with a laser beam powerful enough? In theory, it is possible to create a laser that is powerful enough to evaporate the earth. It but I can’t see it happen, maybe punch a few holes in the earth. A reconnaissance vehicle was hit by a 100mm Soviet artillery shell. This car has two new 4-inch holes and no other damage. Another problem is to cool it, you can convert about 48% of the energy into light, so the laser must emit enough heat to make the earth evaporate or evaporate itself.
Can lasers be used to cut grass instead of lawn mower blades? Do not. Suppose we can achieve “laser mowing” at a lower total cost than ordinary lawn mower blades. There are two main problems that cannot be overcome: Compared with traditional blades, plants/grass will withstand more damage and stress. The laser will have to literally burn through the plant material, which will cause many problems for the plant itself and produce undesirable aesthetic effects.
“Laser mowing” will definitely cause a fire because you burn the plant material separately. Nevertheless, if I can, I will completely try to trim my yard with a laser pointer. Technically? To the end of the universe (is there such a thing)… But more practically, it depends on the pointer. Some laser pointers are very powerful nowadays. They look like lightsabers and scatter dust particles in the atmosphere into the range you can see. (These lasers are also very dangerous, and given their extremely high power, they may not be completely legal when they are sold.)
Most laser pointers produce milliwatts of power, and if they are well aligned, this is no problem for traveling several miles. Collimation is a measure of how much a beam is magnified over a given distance. Cheap laser pointers usually do not collimate well, although this situation is changing rapidly. So it’s really not a question of how far they can go, but whether you can distinguish a light spot, it depends on the direction you look like anything else.
If you are a few miles away and someone points a laser pointer in your direction and happens to aim your eye, you will definitely see it. However, if the pointer points to the wall next to you, you will not know where it is.