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  2. Philadelphi Corridor - Wikipedia

    en.wikipedia.org/wiki/Philadelphi_Corridor

    The Philadelphi Corridor, also called Philadelphi Route, is the Israeli code name for a narrow strip of land, some 100 metres wide and 14 km (8.7 miles) long, situated along the entirety of the border between the Gaza Strip and Egypt.

  3. Strait of Gibraltar - Wikipedia

    en.wikipedia.org/wiki/Strait_of_Gibraltar

    The two continents are separated by 7.7 nautical miles (14.2 kilometers, 8.9 miles) at its narrowest point. [2] Ferries cross between the two continents every day in as little as 35 minutes. The Strait's depth ranges between 300 and 900 metres (980 and 2,950 feet; 160 and 490 fathoms). [3]

  4. Light-year - Wikipedia

    en.wikipedia.org/wiki/Light-year

    The largest unit for expressing distances across space at that time was the astronomical unit, equal to the radius of the Earth's orbit at 150 million kilometres (93 million miles). In those terms, trigonometric calculations based on 61 Cygni's parallax of 0.314 arcseconds, showed the distance to the star to be 660 000 astronomical units (9.9 ...

  5. Milestone - Wikipedia

    en.wikipedia.org/wiki/Milestone

    Structure signs often include the mileage to a fair degree of precision; in the UK, the chain (equal to 1 ⁄ 80 mile or 20 metres) is the usual accuracy. In the U.S. and Canada, miles are "decimalized", so that, for example, there may be a "milepost 4.83" to mark a junction, crossing, bridge or tunnel.

  6. Pikes Peak - Wikipedia

    en.wikipedia.org/wiki/Pikes_Peak

    On July 17, 1913 William Wayne Brown drove his car, the Bear Cat, 20 miles (32 km) to the summit. [13] [14] The ascent took 5 hours and 28 minutes. The uppermost portion of Pikes Peak, above 14,000 feet (4,267 m) elevation, was declared a National Historic Landmark in 1961. [15] [16] Pikes Peak was the home of a ski resort from 1939 until 1984 ...

  7. Horizon - Wikipedia

    en.wikipedia.org/wiki/Horizon

    If d is in nautical miles, and h in feet, the constant factor is about 1.06, which is close enough to 1 that it is often ignored, giving: d ≈ h {\displaystyle d\approx {\sqrt {h}}} These formulas may be used when h is much smaller than the radius of the Earth (6371 km or 3959 mi), including all views from any mountaintops, airplanes, or high ...

  8. Woodsmith Mine Tunnel - Wikipedia

    en.wikipedia.org/wiki/Woodsmith_Mine_Tunnel

    This would involve 490 feet (150 m) of cut and cover, 2,600 feet (800 m) of conventional tunnelling and 7.4 miles (11.9 km) of using a TBM in a south easterly direction. [28] In November 2018, it was revealed that Strabag had been awarded the contract for the other two sections (nominally 7.5 miles (12 km) per section on average), and so would ...

  9. Geography of Michigan - Wikipedia

    en.wikipedia.org/wiki/Geography_of_Michigan

    The state has 11,037 inland lakes comprising 1,305 square miles (3,380 km 2) of inland water. No point in Michigan is more than 6 miles (9.7 km) from an inland lake or more than 85 miles (137 km) from one of the Great Lakes. [5] The state's numerous rivers are generally short and shallow, though several are navigable by recreational watercraft.