How Far Into the Horizon Can You See
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How far abroad is the horizon?
On a clear day, you tin can meet for miles and miles and miles.
The quondam proverb turns out to exist merely about true. For a half dozen-human foot (182.88 centimeters) tall person, the horizon is a little more iii miles (five kilometers) away.
Geometry tells united states that the distance of the horizon – i.e. the uttermost bespeak the center can run into before Globe curves out beneath our view – depends just on the tiptop of the observer. For example, if you stood atop Mount Everest (which is 29,029 feet, or 8,848 meters tall), the horizon would be about 230 miles (370 km) away.
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Add the result of refraction, which bends rays of light as they pass through the atmosphere, and the horizon is even farther. Cold weather increases the amount of atmospheric refraction, so in a specially frosty location such as Antarctica people have been able to see hundreds of miles away.
Plus, since clouds hover in a higher place footing level, they can exist seen to farther distances than features on Earth'south surface.
Simply simply as weather condition sometimes aids our view, information technology can also hinder it. Fog and scattered calorie-free can limit visibility to below what yous could expect based on height. And of course, topography plays a function – fifty-fifty the best viewing conditions aren't much good if there'south a big fat mountain in your way (though the view might be pleasing anyhow).
Originally published on Live Science.
For the science geek in everyone, Live Scientific discipline offers a fascinating window into the natural and technological world, delivering comprehensive and compelling news and analysis on everything from dinosaur discoveries, archaeological finds and amazing animals to wellness, innovation and vesture technology. Nosotros aim to empower and inspire our readers with the tools needed to understand the world and appreciate its everyday awe.
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Source: https://www.livescience.com/32111-how-far-away-is-the-horizon.html
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