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How Does a Laser Pointer Work?
Laser pointers have a circuit board inside it that houses the circuitry necessary to run it. The board contains the laser diode, control circuitry, and...
The Basics of a Laser Pen
A laser pen is an electronic device which draws lines using an elongated tip that resembles a pointer. Once a line has been drawn, the...
What is the Diameter of an Laser Beam?
The first laser was developed in the early 1900s as a potentially deadly device. In 1905, Theodore Maiman described the beam as having the power...