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The most frequently asked question by students is "How far can a laser pointer go?". A blue laser of 1W can easily reach up to 450 miles , can a laser pointer reach the moon and can be useful in presentations. The beam can be aimed in a variety of directions, including towards moving vehicles. However, a laser with a high power can extend its beam to the point that it's impossible to be observed from a vehicle. In these situations it is possible for a more powerful laser to be used.

The power of lasers in a pointer varies. A laser with a power of 200mW can be seen over an entire mile. A 1000mW red laser can a laser pointer reach the moon be visible for ten miles away. Certain lasers have a smaller range. According to ScienceDaily.com the world's largest laser is 270 kilometers long. It's worth noting that a projectile, also known as a "laser" in space will continue to radiate light till it strikes something. A green laser, however, will only show a small area of a space.

If you're worried about safety, you might prefer a laser pointer that is green. It's as bright a 100-watt light bulb from three feet away, however, it's brighter than the quarter moon when you look up from the distance of 40,000 feet. The green laser pointer on the other hand isn't appropriate for use. Always choose an authentic brand. If you're not certain, read reviews and ask your friends and family whether they've experienced any issues with these gadgets.

While lasers can travel for a long distance however, their range is very restricted. This is because they can be too powerful for the distance they can reach. It is recommended to store the laser in a closed housing to avoid spills that could happen. Also, while you're there don't forget to check the distance that the laser can reach. This is a great way to ensure safety and avoid an unsafe situation!

There are numerous methods to calculate the distance a laser can travel. The distance to the moon is 238 miles and it's possible to find one that has a power of 5500mW. It's possible to use the 50mW laser, and it will be able to work as far as it's intended to. Utilizing a laser with a power of 5mW could be risky and distracting.

Laser pointers are supposed to function at a low power level. If you've got an optical source that has at a few thousand milliwatts and you are able to see it for up to 1 mile. In the case of an airplane, it could be impossible to see the laser's pointer unless focused on your eyes. But if you're in the middle of nowhere the beam of light from the laser pointer can be observed far away.