Until recently we were only more familiar with the red lasers, but the introduction of the green lasers have made people more enthusiastic about lasing, simply because a green laser pointer beam is more powerful and is able to reach further distances, and the streak is distinctly visible even through dusty air. In fact today, the devices are so cheaply available that even school kids use them as toys.
Today lasers, or rather laser beam producing devices, have become very common and are available plentifully in the market in different shapes and sizes. This may remind you of Steven Seagal, William Baldwin, Bruce Willis, and many other Hollywood Stars who are shown during many occasions (in movies) getting that dreaded red spot on their body from a remotely located sniper’s gun.
Laser beams are particularly renowned for their powerful beam intensities which are able to sustain straight paths through unlimited distances and create a tight spot as they strike an opaque object.
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