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An LED is a light emitting diode that rests on a semiconductor material (aluminum gallium arsenide). The LED bulb has no filament, so it won't burn out like an incandescent light bulb. The...
To understand how a laser operates, it's important to know the basics behind the atom, the principle part of everything in the world, whether it is a gas, liquid or solid. Atoms are formed by a...
The word laser is actually an acronym that stands for "light amplified by the stimulated emission of radiation," which is the technical description of how a laser beam is made. In layman's terms,...
There are three main properties that make electricity work: voltage, amps and resistance. These properties work together inside a circuit to allow electricity to move from place to place.
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