A common question from students is "How far can a laser pointer go?". A 1W blue laser could easily cover up to 450 miles , and is ideal for presentations. The beam can be directed in many directions, including at moving vehicles. However, a laser with a high power can radiate its beam so wide that it is unable to be seen from a vehicle. In such situations it is possible for a more powerful laser to be used.

The power of lasers in an object varies. A laser with a power of 200mW can be observed from a mile away. A 1000mW red laser can be visible from ten miles away. Certain lasers have a shorter distance. According to ScienceDaily.com, the world's longest laser spans 270 km. It's worth noting that a projectile, also known as a "laser" within space will continue to emit light until it hits something. The green laser however will only show a small area across a space.

If you're worried about security, you may want to choose the laser pointer that is green. It's 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 up from 40,000 feet. A green laser pointer, however is not safe to use. You should always buy an authentic brand. If you're unsure then read the reviews and ask family and friends about any incidents they've experienced with these gadgets.

While lasers can travel for a long distance however, their range is very only limited. This is due to the fact that they may be too powerful for the distance they can be able to cover. You'll want to keep them in a sealed housing to stop accidental spills. While you're there, be sure to look over the distance that the laser can reach. It's a great way to be safe and avoid a dangerous situation!

There are a variety of ways to determine the distance that a laser pointer can travel. Distance to moon 238 miles, and it's possible to find one with a power of 500mW. 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 also distracting.

Laser pointers are supposed to operate at a lower power level. If you've got a laser that is a few thousand milliwatts that you can see for as long as a mile. If you're on aircraft, you could be difficult to spot the laser pointer unless it's directed at your eyes. However, if you're in middle of nowhere, the light from a laser pointer can be seen far away.