A common question from learners is "How far can a laser pointer go?". A 1W blue laser can easily travel up to 450 miles , and is ideal for presentations. The beam can be aimed in a variety of directions, including towards vehicles moving. However, a laser with a high power can spread its beam so far that it would be unable to be seen from a vehicle. In these situations the use of a laser with a higher power can be used.

The laser power of the pointer can vary. A green laser of 200mW could be seen from over an entire mile. A 1000mW red laser could be seen from 10 miles away. Certain 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 a 'laser' within space will continue to emit light until it hits something. A green laser however will only show a small space across the room.

If you're concerned about security, you may want to choose the green laser pointer. It's as bright as an 100-watt light bulb when viewed at three feet, but it's as bright as a quarter moon when looking up from 40, 000 feet. Laser pointers that are green, on the other hand, is not suitable for use. You should always buy an established brand. If you're unsure then read the reviews and ask your friends and family about any incidents they've experienced using these devices.

While laser pointers are able to travel far distances however, their range is very limited. This is due to the fact that they may be too powerful for the distance they cover. You'll want to keep the laser in a closed housing to avoid spills that could happen. Also, while you're there be sure to look over the distance of the laser. It's a great method to ensure safety and avoid a dangerous situation!

There are many different methods of determining the distance a laser can travel. The distance to the moon is 238 miles, and green laser pointer you can find one that's powered by 5500mW. It's possible to utilize an flint laser of 50mW and be able to work as far as it's supposed to. Using a 5mW laser pointer could be risky and distracting.

Laser pointers are intended to operate at a low power level. If you own a laser that is at a few thousand milliwatts, you can see it for as long as one mile. If you're on aircraft, you could be difficult to spot the laser's pointer unless directed at your eyes. However, if you're in far reaches of the wilderness the light of the laser pointer can be seen from miles away.