A common question from students is "How far is a laser-pointer's range?". A 1W blue laser can easily travel as far as 450 miles and is useful for presentations. The beam can be directed at many different directions, and even at moving vehicles. However, a powerful laser may extend its beam to the point that it is unable to be observed from a vehicle. In such situations, a higher-powered laser can be employed.

The laser power of an object varies. A 200mW green laser can be seen from over an entire mile. A 1000mW red laser could be visible for ten miles away. Some lasers have a shorter range. According to ScienceDaily.com, the world's longest laser spans 270 km. It is important to note that a projectile or laser in space will produce light as long as it hits something. A green laser however will only illuminate a small area across a room.

If you're concerned regarding safety, you may consider an laser pointer that is green. It looks as bright as an 100-watt light bulb when viewed from three feet away however, it's brighter than the quarter moon when you look up from 40, 000 feet. Laser pointers that are green, in contrast isn't safe to use. Always choose an authentic brand. If you're not sure, read reviews and ask friends and family if they've had any accidents using these devices.

Although laser pointers can go for a long distance, their range is restricted. This is because they can be too powerful in relation to the distance they reach. You'll want to keep them in a sealed housing to prevent accidental spills. And while you're there, be sure to look over the capabilities that the laser can reach. This is a great way to ensure safety and avoid a dangerous situation!

There are numerous methods of determining the distance that a laser pointer can travel. Distance to moon 238 miles and it's possible to find one that has a power of 500mW. It's possible to use the 50mW laser, and it will be able to work as far as it's supposed to. Utilizing a laser with a power of 5mW can be dangerous and can be distracting.

Laser pointers are designed to operate at a lower power level. If you've got a laser that is a few thousand milliwatts and you are able to see it for up to one mile. If you're in an airplane, it might be impossible to see the laser's pointer unless focused on your eyes. But if you're in the remotest part of the world the beam of light from the laser pointer can be observed from miles away.