How much power does the laser pointer need to emit a visible beam? This is not a question of power, which is equal to the intensity of the laser. A more powerful green laser pointer will make the spot farther and brighter. The laser line used in the building is a spot of light “diffused” through a…
Category: Information
The laser pointer beam behaves differently from other light sources
How accurate is the laser tape measure? More accurate than steel belt. When you measure a distance greater than about 3 meters, the tape will inevitably sag, so the measurement is not very accurate. green laser pointer measurement working at the speed of light does not have any sagging. Obviously the cheaper model is not accurate, but…
This is a real modern laser pointer weapon
I am tired of lasers. Can you think of an original sci-fi weapon with physically possible effects? There are many good answers here, but I will add: What about the green laser pointer that really work? If no medium can pass through, they are invisible, and they actually travel at the speed of light. You just stand…
Can a laser pointer shoot down a drone?
If you really use a powerful laser, you have an aid to aim directly at the camera, if the remote pilot uses trans-horizon/first-person vision, then he will be forced to use the map to navigate and eventually go home. It will be very difficult. Compared with manned aircraft, green laser pointer are much more harmful to drones….
The airborne laser is the most ambitious laser pointer
What is the best laser? Well, usually putting a laser pointer on a rifle is a bit unnecessary. However, if you really want one, I suggest you use PEQ. These are a little heavier than a single laser, but it is one piece. It is a flashlight, a red laser, and most importantly an infrared laser. There…
Laser pointers in Star Wars look like bolts
Why do the lasers in “Star Wars” look like bolts when they are actually beams?Because without these special effects, the movie is really boring. Just imagine if it was in the real world. Hans pulled the trigger, and at the same time we saw a cloud of smoke, there may be some sparks hitting it….
If the laser beam can travel at the speed of light
What will happen to people who are hit by a laser pointer blaster (Star Wars)? Unlike an ancient laser pointer that emits a coherent beam, the blaster emits a beam of superheated plasma, or a beam of self-sufficient high-energy particles, depending on who you are asking. The most powerful E-11 (standard stormtrooper carbine) can evaporate anything except…
The huge spaceborne laser pointer weapon is technically difficult
There is no air in space, and SBL does not have the problems of beam refraction, absorption, jitter and thermal blooming in the atmosphere. However, the biggest problem with space laser pointer weapons is sufficient power, and the technical difficulty of deploying massive and bulky spaceborne laser weapons in orbit is too high. , Reliable, controllable, high…
China’s synthetic aperture lidar achieves new progress
There are stories about “clairvoyance” in Chinese mythology, but the eyes of all creatures in nature cannot see the distance of a thousand miles. The development of new technologies, especially the development of synthetic aperture lidar (SAL) technology, may really enable humans to have “clairvoyance” capabilities. It is a high-resolution imaging lidar. Its outstanding feature…
Laser experiments reveal that the moon has a fluid core
What information can scientists gather from the laser pointer light reflected from the lunar reconnaissance orbiter? First, it accurately reveals the time it takes for the photon to go back and forth-2.5 seconds on average. Scientists can use this time to determine the exact distance of an object. At the same time, by measuring tiny fluctuations in…