The metre was originally defined as 1⁄10,000,000 of the length of the meridian arc from the North pole to the equator, thus one kilometre of distance corresponds to one centigrad (also known as centesimal arc minute) of latitude. The Earth's circumference is therefore approximately 40,000 km. The equatorial circumference is slightly longer than the polar circumference – the measurement based on this (40,075.017 km/360 × 60 = 1,855.3 metres) is known as the geograp… Earth's circumference is the distance around Earth. Measured around the Equator, it is 40,075.017 km (24,901.461 mi). Measured around the poles, the circumference is 40,007.863 km (24,859.734 mi). Measurement of Earth's circumference has been important to navigation since ancient times. The first known … See more Eratosthenes The measure of Earth's circumference is the most famous among the results obtained by Eratosthenes, who estimated that the meridian has a length of 252,000 stadia, … See more • Krebs, Robert E.; Krebs, Carolyn A. (2003). "Calculating the Earth's Circumference". Groundbreaking Scientific Experiments, Inventions, and Discoveries of the Ancient World. Greenwood … See more In 1617 the Dutch scientist Willebrord Snellius assessed the circumference of the Earth at 24,630 Roman miles (24,024 statute miles). Around that time British mathematician See more • Earth radius • Spherical Earth • Nautical mile See more • Carl Sagan demonstrates how Eratosthenes determined that the Earth was round and the approximate circumference See more

What is the circumference of the earth at 60 degrees north ... - Answers

WebApr 10, 2024 · One of these minutes (or minutes of arc as they are called in navigation) along a great circle on Earth represents one nautical mile. In terms of statute or land … how to remove copper pipe fittings

Convert nautical miles to miles - Length / Distance Conversions

WebFeb 9, 2024 · This is the famous image known as Pale Blue Dot. It’s a photograph of Earth taken on February 14, 1990, by the Voyager 1 space probe from a record distance of … Web1 x 4.63E-5 Ec = 4.63E-5 Earth Circumference. Always check the results; rounding errors may occur. Definition: A nautical mile is a unit of measurement defined as exactly 1852 meters … WebEarth's orbit is an ellipse with the Earth-Sun barycenter as one focus and a current eccentricity of 0.0167. Since this value is close to zero, the center of the orbit is relatively … how to remove copper fouling from barrel