How far away is the horizon, from land and sea?

Question

If ya don't know, just say," I don't know"

I was in Navy. Everyone said 8 miles on the ocean. Thanx alot guys! 'preciate it.

Answer 1

There is a neat little formula:

3.57 x square root(h)

Where h is the height of your eyes above sea level

trouble is it only works for metric, which for some reason has escaped the average American.

So if you are standing on a 100 meter high cliff:

horizon = 3.57 x 10 kilometers

= 35.7 kms

If you are standing up the beach somewhere, and your eye level is 3 meters (about 10 feet), the horizon is closer than you think

3.57 x 1.732

About 6km or 4 miles.

Answer 2

The distance to the horizon, in miles, is approximately 0.9 x sqrt(h) where h is the height in feet of your eyes above sea level.

At sea, that would be about 8 miles if the ship's bridge was, say, 75 feet above the waterline, adding another 5 feet for the observer's standing height.

On land, it would be 9 miles from the top of a 100-foot cliff, or 14 miles from the top of a 250-foot lighthouse.

Answer 3

Boy, such distinctive people merely wager. Why do they worry? besides, the quickest formulation is: 3.fifty seven x squareroot of peak. That works for metres, giving the respond in kilometres. So, while you're viewing from a one hundred metre cliff: horizon - 3.fifty seven x squarert one hundred = 3.fifty seven x 10 = 35.7 kilometres away.

Answer 4

Depends entirely on your altitude. A little trig will show you that the distance to the horizon is the mean proportional between your altitude, and your altitude added to the earth's radius. It is customary to not bother to add your altitude to the earth's radius for the last part of that as it makes a negligible difference.

Answer 5

it is as far as you can see/ as far as your eyes can reach