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View of the ocean with two ships: one in the foreground and one to the left of it on the horizon. Historically, the distance to the visible horizon has long been vital to survival and successful navigation, especially at sea, because it determined an observer's maximum range of vision and thus of communication, with all the obvious consequences for safety and the transmission of information ...
"We cut over the fields at the back with him between us – straight as the crow flies – through hedge and ditch." [1] While crows do conspicuously fly alone across open country, they do not fly in especially straight lines. [3] While crows do not swoop in the air like swallows or starlings, they often circle above their nests. [3]
As the crow flies, the two points are 466 km (290 mi) apart. The shortest road distance from Malin to Mizen is approximately 569 km (354 mi). The distance of the routes commonly taken have been reported as between 600 and 644 km (373 and 413 miles). [2] [3]
The distance along the great circle will then be s 12 = Rσ 12, where R is the assumed radius of the Earth and σ 12 is expressed in radians. Using the mean Earth radius , R = R 1 ≈ 6,371 km (3,959 mi) yields results for the distance s 12 which are within 1% of the geodesic length for the WGS84 ellipsoid; see Geodesics on an ellipsoid for ...
The Drake is part of the most voluminous ocean current in the world, with up to 5,300 million cubic feet flowing per second. Squeezed into the narrow passage, the current increases, traveling west ...
The length of the English mainland is delineated by the distance between Land's End and Marshall Meadows Bay in Northumberland. The distance is 556 miles (895 km) by road or 426 miles (686 km) as the crow flies. The traversal of the length of England is sometimes used to define charity events such as walks and cycle-rides.
Horizon distance graphs: Image title: Graphs of distances to the true horizon on Earth for a given height above sea level, h by CMG Lee. s is along the surface of the Earth, d is the straight line distance, and ~d is the approximate straight line distance assuming h << the radius of the Earth, 6371 km. In the SVG image, hover over a graph to ...
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