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@@ -1,1 +1,1 @@ - +A common question from students is "How far is a laser-pointer's range?". A 1W blue laser could easily cover up to 450 miles and can be useful in presentations. The beam can be aimed at many different directions, and even towards moving vehicles. But a high-power laser could extend its beam to the point that it is unable to be seen from the vehicle. In such situations it is possible for a more powerful laser to be used.<br><br>The power of lasers in the pointer can vary. A 200mW green laser can be observed from an entire mile. A 1000mW red laser could be visible from ten miles away. Certain lasers have a smaller distance. According to ScienceDaily.com the world's longest laser measures 270 kilometers. It's important to know that a projectile, also known as a "laser" within space will continue to produce light as long as it strikes something. A green laser, however, will only display a tiny area of a room.<br><br>If you're worried about security, you may want to choose an green laser pointer. It's as bright 100-watt light bulbs at three feet, however it's nearly as bright as a quarter moon when looking up from 40,000 feet. The [http://temkho.cmstogether.com/community/profile/marianwortham4/ green laser pointer near me] laser pointer on the other hand, is not suitable for use. Always choose an authentic brand. If you're unsure you should read reviews, and ask your friends and family whether they've experienced any issues using these devices.<br><br>While laser pointers are able to travel for long distances but their range is restricted. They can be too powerful for the distance they can cover. It is recommended to store the laser in a closed housing to avoid spills that could happen. While you're there, don't forget to check the distance of the laser. It's a great way to be safe and [http://wiki.asexuality.org/User_talk:WillardWitzel1 green laser pointer near me] avoid an unsafe situation!<br><br>There are a variety of methods to calculate the distance a laser pointer can travel. It is estimated that the distance from Earth to Moon will be 238 miles, and you can find one that's powered by 5500mW. It's possible to use the 50mW laser, and it will be able to work as far as it's supposed to. A laser pointer with 5mW can be dangerous and distracting.<br><br>Laser pointers are supposed to operate at a lower power level. If you own an optical source that has just a few thousand milliwatts in power, you can see it for as long as one mile. If you're in aircraft, you could be impossible to see the laser pointer unless it's focused on your eyes. However, if you're in middle of nowhere the beam of light from the laser pointer could be observed far away.