Examiner des modifications individuelles

@@ -1,1 +1,1 @@ - +The most frequently asked question by students is "How far can a laser's pointer travel?". A 1W blue laser can easily reach up to 450 miles , and can be useful in presentations. The beam is able to be directed in many directions, including towards moving vehicles. But a high-power laser could radiate its beam so wide that it is unable to be seen from the vehicle. In such situations, a higher-powered laser can be used.<br><br>The laser power of the pointer can vary. A green laser of 200mW could be seen over an entire mile. A 1000mW red laser could be seen from 10 miles away. Certain lasers have a shorter range. According to ScienceDaily.com the world's largest laser spans 270 km. It's important to know that a projectile, also known as a "laser" in space will continue to produce light as long as it strikes something. A green laser, however, will only show a small space across the room.<br><br>If you're worried about safety, you might prefer an laser pointer that is green. It's as bright as 100-watt light bulbs from three feet away but it's as bright as a quarter moon when looking upwards from 40,000 feet. A [https://forum.agriecomission.com/index.php?action=profile;u=110657 green laser pointer], in contrast isn't safe to use. It is recommended to purchase a reputable brand. If you're not certain then read the reviews and ask your friends and family about any incidents they've experienced using these devices.<br><br>Although laser pointers can go far distances but their range is only limited. This is because they can be too powerful for the distance they cover. You'll want to keep them in a sealed enclosure to avoid spills that could happen. Also, while you're there make sure to verify the capabilities that the laser can reach. It's a great way to protect yourself and avoid danger!<br><br>There are many different methods to calculate the distance a laser 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 5000mW. You can use the 50mW laser, and it will perform at least as well as it's supposed to. A laser pointer with 5mW can be dangerous and also distracting.<br><br>Laser pointers are intended to function at a low power level. If you own an optical source that has just a few thousand milliwatts in power that you can see for up to one mile. If you're on an airplane, [http://econo.urin79.com/board/5304417 green laser pointer] it could be impossible to see the laser's pointer unless pointed at your eyes. But if you're in the remotest part of the world the beam of light from the laser pointer could be observed from miles away.