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@@ -1,1 +1,1 @@ - +A common question from students is "How far can a laser pointer go?". A blue laser of 1W can easily travel up to 450 miles and is ideal for presentations. The beam can be directed at many different directions, and even at moving vehicles. However, a laser with a high power can spread its beam so far that it's impossible to be seen from vehicles. In these situations the use of a laser with a higher power can be employed.<br><br>The laser power of an object varies. A 200mW green laser can be observed from an entire mile. A 1000mW red laser can be visible for ten miles away. Certain lasers have a shorter range. According to ScienceDaily.com the world's largest laser measures 270 kilometers. It's worth noting that a projectile, also known as a '[http://dssurl.com/68up laser pointers for sale]' in space will radiate light till it strikes something. The green laser however will only illuminate a small space across the room.<br><br>If you're concerned regarding safety, you may consider a laser pointer that is green. It's as bright an 100-watt light bulb when viewed at three feet, however, it's brighter than a quarter moon when looking up from 40,000 feet. A green laser pointer, in contrast is not suitable for use. Always choose a reputable brand. If you're not sure then read the reviews and ask friends and family whether they've experienced any issues with these gadgets.<br><br>While lasers can travel for long distances but their range is restricted. They can be too powerful for the distance they be able to cover. You'll want to keep them in a sealed enclosure to avoid spills that could happen. And while you're there, be sure to look over the capabilities for the range of laser. It's a great way to protect yourself and avoid danger!<br><br>There are a variety of ways to determine the distance a laser pointer can travel. Distance to moon 238 miles and it's possible to find one that has a power of 5000mW. It's possible to use 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 also distracting.<br><br>Laser pointers are supposed to operate at a lower power level. If you own an optical source that has at a few thousand milliwatts that you can see for up to 1 mile. In the case of an airplane, it may be difficult to spot the laser pointer unless it's focused on your eyes. But if you're in the remotest part of the world the light of the laser pointer can be observed far away.