Apr 25
Have you ever looked out at the horizon and wondered how far away it is? I have, and for a person my height (1.76 meters) the horizon is 4.71126 km away.
If you’re not exactly the same height as me you can figure out how far away the horizon is using a series of calculations.
But if you can’t be bothered with all the maths you can head on over to this online calculator and it will do all the hard work for you. 
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