@@ -1,1 +1,1 @@ - +One of the most frequent questions from students is "How far can a laser pointer go?". A [http://patriciatraboco.skkpmpc.com/community/profile/yongsnyder39568/ 1W blue laser] could easily reach as far as 450 miles and is useful for presentations. The beam is able to be directed in a variety of directions, including towards moving vehicles. But a high-power laser could radiate its beam so wide that it would be unable to be seen from vehicles. In these situations it is possible for a more powerful laser to be employed.<br><br>The laser power of a pointer varies. A green laser of 200mW could be seen over a mile away. 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 is 270 kilometers long. It's important to know that a projectile or 'laser' within space will continue to produce light as long as it strikes something. The green laser, however, will only show a small area across a room.<br><br>If you're concerned about safety, you might consider the green laser pointer. It's as bright an 100-watt light bulb when viewed at three feet, but it's as bright as the quarter moon when you look upwards from 40, 000 feet. Laser pointers that are green, on the other hand, is not safe to use. Always choose a reputable brand. If you're not certain then read the reviews and ask friends and family if they've had any accidents using these devices.<br><br>While lasers can travel far distances however, their range is very restricted. This is due to the fact that they may be too powerful for the distance they reach. It is recommended to store them in a sealed enclosure to prevent accidental spills. And while you're there, be sure to look over the distance of the laser. This is a great way to ensure safety and avoid danger!<br><br>There are many different methods to calculate the distance that a laser pointer can travel. The distance to the moon is 238 miles and it's possible to locate one that has a power of 5500mW. You can use the 50mW laser, and it will work at least as far as it's intended to. Utilizing a laser with a power of 5mW can be dangerous and distracting.<br><br>Laser pointers are designed to function at a low power level. If you own a laser that is a few thousand milliwatts and you are able to see it for as long as 1 mile. If you're on an airplane, it could be difficult to spot the laser pointer unless it's pointed at your eyes. If you're in the middle of nowhere the beam of light from the laser pointer can be observed from miles away.