Playing golf yesterday. I played a hole, which distance was very deceiving. I wished I had one of those rangefinders handy and my mind went on this whole tangent of how they work. Some only seem to have one scope, which destroys my only theory of using trigonometry.
In: Technology
> Some only seem to have one scope, which destroys my only theory of using trigonometry.
The scope is just used for pointing the rangefinder precisely. It actually uses a laser to determine the range.
Light does not move instantaneously, it has a speed (a very high speed). A laser rangefinder will emit a narrow pulse of light and measure the time it takes for the laser to bounce off the targeted object and return, calculating the distance based on the travel time.
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