Earth's polar circumference is very near to 21,600 nautical miles because the nautical mile was intended to express one minute of latitude (see meridian arc), which is 21,600 partitions of the polar circumference (that is 60 minutes × 360 degrees). See more 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). See more Eratosthenes The measure of Earth's circumference is the most famous among the results obtained by Eratosthenes, who estimated that the meridian … 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 In 1617 the Dutch scientist Willebrord Snellius assessed the circumference of the Earth at 24,630 Roman miles (24,024 statute miles). … See more • Krebs, Robert E.; Krebs, Carolyn A. (2003). "Calculating the Earth's Circumference". Groundbreaking Scientific Experiments, … See more
40th parallel north - Wikipedia
WebThe calculator below calculates Earth radius at a given latitude. In fact, of course, it calculates the radius of WGS 84 reference ellipsoid at a given latitude, and if you want some theory recap, you can find it below the … WebApr 25, 2024 · Earth’s Measurements. With a circumference of 40,075 km, Earth is the fifth largest of the planets in the Solar System. The meridional circumference that is … small weight sensor
Circle of latitude - Wikipedia
WebThe 40th parallel north is a circle of latitude that is 40 degrees north of the Earth's equatorial plane. It crosses Europe, the Mediterranean Sea, Asia, the Pacific Ocean, North America, and the Atlantic Ocean . Web23.5 degrees north latitude Prime meridian Used to measure longitude and divides earth into east and west reference line for longitude Hemisphere Each half of the globe Tropic of cancer The furthest latitude north to receive direct sunlight Tropic of Capricorn The furthest latitude south to receive direct sunlight Arctic circle WebJan 11, 2024 · The earth, as we said, is an oblate spheroid, so geodesists (scientists who measure the earth and its position in space) have measured and calculated the average of earth's circumference as 40,075 km or 24,901 mi. Eratosthenes, some 2,200 years ago, was off by only 125 km or 101 mi. small weight rack