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  2. Earth's circumference - Wikipedia

    en.wikipedia.org/wiki/Earth's_circumference

    Earth's circumference is the distance around Earth. Measured around the equator, it is 40,075.017 km (24,901.461 mi). Measured passing through the poles, the circumference is 40,007.863 km (24,859.734 mi). [1] Treating the Earth as a sphere, its circumference would be its single most important measurement. [2]

  3. List of pedestrian circumnavigators - Wikipedia

    en.wikipedia.org/wiki/List_of_pedestrian...

    He faced challenges such as extreme weather and health issues but maintained a walking pace of around 30 km per day. [23] [24] Date Jan. 1, 2009 – June 9, 2013 Duration 4 years, 5 months, 9 days Distance 40,000 kilometres (25,000 mi) Name Tony Mangan: Third runner to successfully run around the world. Having run 50,000 km, he holds the record ...

  4. Circumnavigation world record progression - Wikipedia

    en.wikipedia.org/wiki/Circumnavigation_world...

    44 hours and 6 minutes 8 January 1980 10 January 1980 Retains record for circumnavigation using only scheduled transportation. [25] Air France: 32 hours 49 minutes and 3 seconds 12 October 1992 13 October 1992 Concorde FAI "Westbound Around the World" world air speed record from Lisbon, Portugal. [26] [27] [28] Michel Dupont and Claude Hetru

  5. List of circumnavigations - Wikipedia

    en.wikipedia.org/wiki/List_of_circumnavigations

    Dave Kunst walked around the world between 20 June 1970 and 10 October 1974. Rick Hansen, a paraplegic athlete, became the first person to travel around the world in a wheelchair from 21 March 1985 to 22 May 1987, covering over 25,000 mi (40,000 km) through 34 countries on four continents. [81]

  6. Earth radius - Wikipedia

    en.wikipedia.org/wiki/Earth_radius

    Earth radius (denoted as R 🜨 or R E) is the distance from the center of Earth to a point on or near its surface. Approximating the figure of Earth by an Earth spheroid (an oblate ellipsoid), the radius ranges from a maximum (equatorial radius, denoted a) of nearly 6,378 km (3,963 mi) to a minimum (polar radius, denoted b) of nearly 6,357 km (3,950 mi).

  7. Around the world sailing record - Wikipedia

    en.wikipedia.org/wiki/Around_the_world_sailing...

    IDEC 3, current outright record holder at 40 days, 23 hours, 30 minutes and 30 seconds. The first around the world sailing record for circumnavigation of the world can be attributed to the surviving crew of Ferdinand Magellan's expedition, including the last captain Juan Sebastián Elcano who completed their journey in 1522.

  8. List of longest cross-country trails - Wikipedia

    en.wikipedia.org/wiki/List_of_longest_cross...

    Appalachian Trail – This trail is around 3,500 km (2,200 mi) stretching throughout most of the east coastal United States. Kinki Nature Trail – In Japan, about 3,300 km (2,100 mi) long. Greater Patagonian Trail [ 2 ] – In Chile and Argentina is currently 3,000 km (1,900 mi) long and can potentially be extended to approx. 4,000 km (2,500 mi).

  9. String girdling Earth - Wikipedia

    en.wikipedia.org/wiki/String_girdling_Earth

    Surprisingly, the answer is 2 π m or around 6.3 metres (21 ft). In the second phrasing, considering that 1 metre (3 ft 3 in) is almost negligible compared with the 40,000 km (25,000 mi) circumference, the first response may be that the new position of the string will be no different from the original surface-hugging position.

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