The most frequently asked question by students is "How far is a laser-pointer's range?". A 1W blue laser can easily cover up to 450 miles , and is useful for presentations. The beam can be directed in many directions, including towards moving vehicles. However, a powerful laser may extend its beam to the point that it's impossible to be seen from a vehicle. In such situations, a higher-powered laser can be used.

The power of lasers in an object varies. A laser with a power of 200mW can be seen over an entire mile. A 1000mW red laser could be seen from 10 miles away. Certain lasers have a shorter range. According to ScienceDaily.com, the world's longest laser is 270 kilometers long. It's worth noting that a projectile or "laser" within space will continue to produce light as long as it strikes something. The green laser, however, will only illuminate a small area across a space.

If you're worried regarding safety, you may consider a green laser pointer. It's as bright as 100-watt light bulbs from three feet away however it's nearly as bright as a quarter moon when looking upwards from 40, 000 feet. The green laser pointer in contrast isn't safe to use. You should always buy an established brand. If you're unsure then read the reviews and ask family and friends if they've had any accidents using these devices.

While laser pointers are able to travel for a long distance but their range is limited. This is because they can be too powerful for the distance they can cover. It is recommended to store them in a sealed housing to stop accidental spills. Also, while you're there be sure to look over the range of the laser. This is a great way to be safe and avoid a dangerous situation!

There are a variety of ways to determine the distance a laser pointer can travel. Distance to moon 238 miles, and you can find one that's powered by 500mW. You can use a 50mW laser and it'll perform at least as well as it's intended to. Using a 5mW laser pointer could be risky and distracting.

Laser pointers are designed to operate at a lower power level. If you have a laser that is a few thousand milliwatts that you can see for as long as a mile. If you're on an airplane, it may be impossible to see the laser pointer unless it's focused on your eyes. But if you're in the middle of nowhere the beam of light from the laser pointer can be observed from miles away.