The most frequently asked question by students is "How far can a laser's pointer travel?". A 1W blue laser could easily reach as far as 450 miles and is useful for 3x magnification presentations. The beam is able to be directed in a variety of directions, including at moving vehicles. But a high-power laser could spread its beam so far that it's impossible to be observed from the vehicle. In these instances, a higher-powered laser can be used.

The laser power of a pointer varies. A 200mW green laser can be seen from over an entire mile. A red laser of 1000mW can be seen from 10 miles away. Certain lasers have a smaller distance. 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 continue to produce light as long as it hits something. A green laser, however, will only show a small area of a room.

If you're worried about security, you may want to choose 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 nearly as bright as a quarter moon when looking upwards from the distance of 40,000 feet. The green laser pointer in contrast isn't appropriate for 3x magnification use. You should always buy an established brand. If you're unsure, read reviews and ask family and friends if they've had any accidents using these devices.

Although laser pointers can go for long distances however, their range is very only limited. They can be too powerful for the distance they can reach. It is recommended to store them in a sealed enclosure to prevent accidental spills. Also, while you're there make sure to verify the distance of the laser. This is a great way to ensure safety and avoid an unsafe situation!

There are many different 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 with a power of 5000mW. It's possible to utilize the 50mW laser, and it will work at least as far as it's intended to. A laser pointer with 5mW can be dangerous and can be distracting.

Laser pointers are designed to function 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. In the case of the air, it may be difficult to spot the laser pointer , unless it's pointed at your eyes. However, if you're in middle of nowhere, the light from the laser pointer can be observed from miles away.