A common question from learners is "How far can a laser pointer go?". A 1W blue laser could easily reach as far as 450 miles and can be useful in presentations. The beam is able to be directed in a variety of directions, including at moving vehicles. But a high-power laser could extend its beam to the point that it's impossible to be observed from vehicles. In such situations the use of a laser with a higher power can be employed.

The power of the laser beam from the pointer can vary. A 200mW green laser can be seen from over an entire mile. A 1000mW red laser can be visible from ten miles away. Certain lasers have a shorter range. According to ScienceDaily.com the world's largest laser measures 270 kilometers. It's important to know that a projectile or 'laser' in space will radiate light till it strikes something. The green laser, however, will only illuminate a small area of a space.

If you're concerned regarding safety, you may prefer a green laser pointer. It looks as bright as 100-watt light bulbs 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 a reputable brand. If you're not certain, read reviews and ask family and friends if they've had any accidents using these devices.

Although laser pointers can go far distances however, their range is very only limited. This is due to the fact that they may be too powerful for the distance they can reach. You'll want to keep them in a sealed enclosure to prevent accidental spills. Also, while you're there don't forget to check the distance of the laser. This is a great way to protect yourself and avoid danger!

There are a variety of methods of determining the distance a laser pointer can travel. It is estimated that the distance from Earth to Moon will be 238 miles, and it's possible to find one that has a power of 5000mW. It's possible to use a 50mW laser and it'll work at least as far as it's designed to. Using a 5mW laser pointer could be risky and also distracting.

Laser pointers are supposed to operate at a low power level. If you have a laser that is a few thousand milliwatts, you can see it for as long as 1 mile. If you're in the air, it could be difficult to spot the laser pointer , unless it's focused on your eyes. But if you're in the middle of nowhere, the light from the laser pointer could be observed far away.