One of the most frequent questions from learners is "How far is a laser-pointer's range?". A 1W blue laser could easily reach up to 450 miles and is ideal for presentations. The beam can be aimed at many different directions, and even towards moving vehicles. But a high-power laser could radiate its beam so wide that it's impossible to be seen from a vehicle. In these instances the use of a laser with a higher power can be used.

The power of the laser beam from a pointer varies. A green laser of 200mW could be seen over an entire mile. A 1000mW red laser can be visible for ten miles away. Some lasers have a shorter range. According to ScienceDaily.com the world's largest laser spans 270 km. It's worth noting that a projectile, also known as a 'laser' within space will continue to emit light until it strikes something. A green laser however will only display a tiny area across a room.

If you're concerned about safety, you might want to choose a laser pointer that is green. It looks as bright as a 100-watt light bulb from three feet away, but it's as bright as a quarter moon when looking up from the distance of 40,000 feet. A green laser pointer, in contrast isn't safe to use. It is recommended to purchase an established brand. If you're unsure then read the reviews and ask family and friends whether they've experienced any issues using these devices.

While laser pointers are able to travel for long distances but their range is only limited. They can be too powerful in relation to the distance they be able to cover. You'll need to keep them in a sealed housing to prevent accidental spills. Also, green laser pointer while you're there don't forget to check the capabilities for the range of laser. This is a great way to protect yourself and avoid a dangerous situation!

There are a variety of methods to calculate the distance that a laser pointer can travel. The distance to the moon is 238 miles, and you can find one that has a power of 5000mW. You can use the 50mW laser, and it will perform at least as well as it's intended to. Utilizing a laser with a power of 5mW could be risky and distracting.

Laser pointers are designed 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 a mile. If you're in an airplane, it could be difficult to spot the laser pointer , unless it's directed at your eyes. If you're in the far reaches of the wilderness the light of the laser pointer could be observed far away.