1 Kilometre - Human-defined Scales and Structures

Human-defined Scales and Structures

  • 1 km — Wavelength of the highest long wave radio frequency, 300 kHz
  • 1.280 km — Span of the Golden Gate Bridge (distance between towers)
  • 1.609 km — 1 mile
  • 1.852 km — 1 nautical mile, equal to 1 arc minute of latitude at the surface of the earth
  • 1.991 km — Span of the Akashi-Kaikyo Bridge
  • 2.309 km — Axial length of the Three Gorges Dam, the largest dam in the world
  • 3.991 km — Length of the Akashi-Kaikyo Bridge, longest suspension bridge in the world as of December 2008
  • 5.072 km — Height of Tanggula Mountain Pass, below highest peak in the Tanggula Mountains, highest railway pass in the world as of August 2005
  • 5.727 km — Height of Cerro Aucanquilcha, highest road in the world, located in Chile
  • 98 airports have paved runways from 4 km to 5.5 km in length.

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Famous quotes containing the words scales and/or structures:

    It cannot but affect our philosophy favorably to be reminded of these shoals of migratory fishes, of salmon, shad, alewives, marsh-bankers, and others, which penetrate up the innumerable rivers of our coast in the spring, even to the interior lakes, their scales gleaming in the sun; and again, of the fry which in still greater numbers wend their way downward to the sea.
    Henry David Thoreau (1817–1862)

    It is clear that all verbal structures with meaning are verbal imitations of that elusive psychological and physiological process known as thought, a process stumbling through emotional entanglements, sudden irrational convictions, involuntary gleams of insight, rationalized prejudices, and blocks of panic and inertia, finally to reach a completely incommunicable intuition.
    Northrop Frye (b. 1912)