It may end with a star, as if it is widely exaggerated to think that space spans infinity, which may be true, but in our case, think of space as a collection of celestial bodies and gaps in between. So at some point, there must be a star in the green laser pointer path. If the star…
Category: Knowledge
The divergence of the laser pointer beam is usually much smaller than other light sources
We must first determine what we mean by the problem. Because light will not stop spreading. The more interesting question is how far we can see the reflection of the laser under ideal conditions. In complete darkness, when it shines on a white surface, we can see a <5mW 650nm laser from 500-1 km away….
Is it possible to destroy the earth with a laser beam powerful enough?
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…
Can laser pointer treatment really reverse scalp hair loss?
Is it possible to emit laser light from the eyes? By magic. But the ceremony you give you here is too complicated. In addition, if you are in a situation where you need to emit a laser, the preparation time will be very long. If it is used for video, you must add a green laser…
Laser pointer skin treatment for skin resurfacing will remove wrinkles
Why do most people who don’t like tattoos refuse green laser pointer removal and choose to cover it up?There may be several reasons for this. 1. Laser removal is expensive and requires multiple treatments to reduce the appearance of the tattoo. In fact, it is much more painful than the actual tattoo. 2. It is usually easy…
Which is better red dot or laser pointer?
How long does it take for the laser beam to hit Mars from Earth’s orbit? Well, the laser pointer beam travels at approximately 186,282 miles per second, so you can calculate the time by dividing the distance by this value. I have posted the approximate maximum and minimum distances between the planets and the sun, and placed…
Larger better and larger laser pointer
How practical is the laser gun? it depends. Using the currently imaginable technology, anywhere between “very” and “worse than useless” let us start from the very practical. That is a laser pointer mounted on a large object, such as a ship or air defense system, which can provide power and cooling. Laser Weapon System-Wikipedia The US Navy…
The laser weapon system currently in use by the Navy
How does the laser work? How realistic is the laser pointer gun in the science fiction movie? What would a realistic laser gun look like? For example, this is the laser weapon system currently in use by the US Navy: Obviously, it can disable missiles, drones, and boats by overheating electronic equipment. Compared with more classic weapons,…
STMicroelectronics launches laser ranging sensor
Across multiple electronic applications, STMicroelectronics, the world’s leading semiconductor supplier, released the second generation of laser pointer ranging sensors. The new sensor VL53L0 is based on the successful FlightSense MT technology to achieve faster, farther, and more accurate ranging functions, greatly improving the camera performance of mobile phones and tablets, for robots, user detection, drones, Internet of…
Physicists photographed crystal structure transformation under laser beam
Laser beams can be used to change the properties of materials in extremely precise ways. This principle has been widely used in technologies such as rewritable DVDs. However, the basic process is generally carried out at such an unimaginable speed and such a small scale that it has not been directly observed so far. Researchers…