WebSurface pressure: 1014 mb Surface density: 1.217 kg/m 3 Scale height: 8.5 km Total mass of atmosphere: 5.1 x 10 18 kg Total mass of hydrosphere: 1.4 x 10 21 kg Average … WebApr 12, 2024 · Earth Overview In Depth By the Numbers Exploration Galleries Earth vs Units of Measure: Compare all Eight Planets The numbers displayed here are …
In Depth Earth – NASA Solar System Exploration
WebOct 22, 2024 · Both of these values are very close to the accepted modern values for the Earth's circumference and radius, 40,070 km and 6378 km respectively, which have … 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 scab that won\\u0027t heal
How big is Earth? Space
WebIn 200 B.C.E., Erastothenes estimated the circumference of the Earth to be about 46,250 km (at the time he used a different unit for distance, the stadia). Today we know that the Earth’s circumference is roughly 40,000 km (24,854 miles). Not bad for a two-thousand year old estimate with no modern technology! 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 … 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 WebSelect the most accurate result for the Earth's circumference, which is 40075 km. 40000 75 km 40090 + 100 km 40100 + 30 km 40000 100 km 40100 + 75 km 40000 + 20 km This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. See Answer highphan