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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]
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
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 ...
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]
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).
[nb 1] Earth's orbital speed averages 29.78 km/s (19 mi/s; 107,208 km/h; 66,616 mph), which is fast enough to cover the planet's diameter in 7 minutes and the distance to the Moon in 4 hours. [3] The point towards which the Earth in its solar orbit is directed at any given instant is known as the "apex of the Earth's way".
For example, if a distance of 80 kilometres is driven in 1 hour, the average speed is 80 kilometres per hour. Likewise, if 320 kilometres are travelled in 4 hours, the average speed is also 80 kilometres per hour. When a distance in kilometres (km) is divided by a time in hours (h), the result is in kilometres per hour (km/h).
Clickable image, highlighting medium altitude orbits around Earth, [a] from Low Earth to the lowest High Earth orbit (geostationary orbit and its graveyard orbit, at one ninth of the Moon's orbital distance), [b] with the Van Allen radiation belts and the Earth to scale To-scale diagram of low, medium, and high Earth orbits Space of Medium Earth orbits (MEO) as pink area, with Earth and the ...