A common question from pupils 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 is able to be directed at many different directions, and even towards moving vehicles. But a high-power laser could radiate its beam so wide that it's impossible to be seen from a vehicle. In such situations it is possible for a more powerful laser to be used.

The power of the laser beam from an object varies. A green laser of 200mW could be seen from over an entire mile. A red laser of 1000mW can be visible for ten miles away. Some lasers have a shorter range. According where to buy a laser pointer ScienceDaily.com, the world's longest laser measures 270 kilometers. It is important to note that a projectile, also known as a 'laser' within space will continue to radiate light till it strikes something. The green laser, however, will only show a small space across the room.

If you're concerned regarding safety, you may consider an laser pointer that is green. It looks 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 the distance of 40,000 feet. The green laser pointer on the other hand, where to buy a laser pointer is not appropriate for use. You should always buy a reputable brand. If you're not certain you should read reviews, and ask friends and family whether they've experienced any issues using these devices.

Although laser pointers can go for a long distance but their range is restricted. This is because they can be too powerful in relation to the distance they cover. You'll want to keep the laser in a closed housing to avoid spills that could happen. Also, while you're there make sure to verify the range for the range of laser. This is a great way to be safe and avoid a dangerous situation!

There are a variety of methods of determining the distance a laser pointer can travel. The distance to the moon is 238 miles and you can find one that has a power of 5000mW. It's possible to use the 50mW laser, and it will perform at least as well as it's supposed to. Using a 5mW laser pointer can be dangerous and distracting.

Laser pointers are intended to operate at a low power level. If you own a laser that is a few thousand milliwatts and you are able to see it for up to one mile. If you're in the air, it could be impossible to observe the laser pointer , unless it's directed at your eyes. However, if you're in remotest part of the world, the light from the laser pointer can be seen from miles away.