One of the most frequent questions from students is "How far is a laser-pointer's range?". A blue laser of 1W can easily cover up to 450 miles and is ideal for presentations. The beam is able to be directed in a variety of directions, including towards vehicles moving. However, a powerful laser may radiate its beam so wide that it is unable to be observed from a vehicle. In these situations it is possible for a more powerful laser to be used.

The power of the laser beam from the pointer can vary. A laser with a power of 200mW can be seen over one mile. A 1000mW red laser can be visible from ten miles away. Some lasers have a shorter range. According to ScienceDaily.com the world's largest laser spans 270 km. It's important to know that a projectile or a "laser" in space will radiate light till it strikes something. A green laser, however, will only show a small area across a room.

If you're worried about security, you may consider the 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 the quarter moon when you look upwards from 40, 000 feet. A green laser pointer, however is not suitable for use. Always choose an established brand. If you're not certain you should read 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, their range is limited. This is because they can be too powerful in relation to the distance they reach. You'll need to keep the laser in a closed housing to prevent accidental spills. Also, while you're there don't forget to check the range of the best laser safety glasses. It's a great way to be safe and best laser safety glasses avoid an unsafe situation!

There are numerous methods to calculate 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 5500mW. It's possible to use the 50mW laser, and it will perform at least as well as it's intended to. Using a 5mW laser pointer can be dangerous and distracting.

Laser pointers are intended to operate at a low power level. If you have a laser that is a few thousand milliwatts and you are able to see it for as long as one mile. In the case of the air, it might be impossible to observe the laser's pointer unless directed at your eyes. But if you're in the far reaches of the wilderness the light of the laser pointer could be observed from miles away.