Laser and a Candle

Consider a burning candle.


When lit, it radiates light in all directions with equally.

What a laser simply does is, it takes all these light and radiates in a Single direction ,mostly into a small area of radius 2mm.


Doing this will gives you a million times illuminated candle's effect.


NB: This is just a comparison; a candle is never a laser nor can be considered as one.

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