A common question from learners is "How far is a laser-pointer's range?". A 1W blue laser could easily reach up to 450 miles and is useful for presentations. The beam is able to be directed at many different directions, and even at moving vehicles. However, a laser with a high power can spread its beam so far that it would be unable to be seen from vehicles. In these instances it is possible for a more powerful laser to be used.

The laser power of a pointer varies. A green laser of 200mW could be seen over a mile away. A 1000mW red laser can be visible for ten miles away. Some lasers have a shorter range. According to ScienceDaily.com the world's longest laser is 270 kilometers long. It is important to note that a projectile or "laser" within space will continue to emit light until it hits something. The green laser however will only display a tiny space across the space.

If you're worried about security, you may consider the laser pointer that is green. It's as bright 100-watt light bulbs at three feet, however, it's brighter than the quarter moon when you look up from 40, 000 feet. Laser pointers that are green, in contrast, is not safe to use. It is recommended to purchase a reputable brand. If you're not certain then read the reviews and ask friends and family about any incidents they've experienced with these gadgets.

While laser pointers are able to travel for long distances but their range is only limited. This is due to the fact that they may be too powerful for the distance they can be able to cover. You'll want to keep them in a sealed enclosure to stop accidental spills. And while you're there, don't forget to check the distance of the laser. It's a great way to ensure safety and avoid danger!

There are a variety of methods of determining the distance a laser can travel. It is estimated that the distance from Earth to Moon will be 238 miles and it's possible to locate one with a power of 5000mW. It's possible to utilize an flint laser of 50mW and perform at least as well as it's supposed to. A laser pointers sale pointer with 5mW can be dangerous and can be distracting.

Laser pointers are supposed to operate at a lower power level. If you have one that's a few thousand milliwatts that you can see for as long as 1 mile. In the case of aircraft, you might be impossible to observe the laser pointer unless it's directed at your eyes. But if you're in the middle of nowhere the beam of light from a laser pointer can be observed from miles away.