So we point these things at our target, push the button, and it gives us a number. We know that there’s a laser involved somehow, but just how do these things do it anyway?  Turns out it’s an old idea.

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How Does A Laser Rangefinder Work Anyway?unrated2011-04-14 07:45:25So we point these things at our target, push the button, and it gives us a number. We know that there’s a laser involved somehow, but just how do thes…