WebSep 7, 2024 · Observations and results In 200 B.C. Eratosthenes estimated Earth’s circumference at about 46,250 kilometers (28,735 miles). Today we know our planet's …
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WebJan 21, 2024 · The distance from Earth to the sun — called an astronomical unit — is 92,955,807 miles (149,597,870 kilometers), according to the International Astronomers … WebDec 15, 2024 · From an average distance of 93 million miles (150 million kilometers), Earth is exactly one astronomical unit away from the Sun because one astronomical unit (abbreviated as AU), is the distance from …
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. WebIn the mid-20th century we began launching satellites into space that would help us determine the exact circumference of the Earth: 40,030 km. But over 2000 years earlier, …
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 … Webwhat is the Radius of the earth in miles 4000 miles what is the radius of the earth in kilometers 6400 km what is the diameter of earth in miles 8000 miles what is the diameter of earth in km 12,800 km what is the circumference of earth in miles 24,000 miles what is the circumference of earth in km 38600 km
WebSep 4, 2024 · As it turns out, the meridional circumference of Earth (from pole to pole) is roughly 40,008 km, and the equatorial circumference is about 40,075 km (it's bigger at the equator because Earth slightly bulges in its middle). Not bad for someone with such rudimentary tools. Eratosthenes used his new knowledge to revolutionise map making.
WebJul 6, 2024 · Earth's polar radius is 3,950 miles (6,356 km) — a difference of 13 miles (22 km). Using those measurements, the equatorial circumference of Earth is about 24,901 miles (40,075 km).... how to replace window shuttersWebEarth: By the Numbers Discovery Date of Discovery: Unknown Discovered By: Known by the Ancients Orbit Size Around Sun Metric: 149,598,262 km English: 92,956,050 miles … northborough centerWebMeasured at the equator, the Earth has a circumference of 40,075.017 km or 24,901.461 miles. But measured from pole to pole, that is to say, along the meridian line, the Earth has a... how to replace window switch 2008 silveradoWebFind the speed of the Earth in its orbit about the Sun, using the distance 1 AU from Sun to Earth. Give the answer in km/s to two significant figures. 3.0 x 10 km/s because Circumference of orbit = 2 π r = 2 (3.14) (1.5 x 108) = 9.4x108 km Number of seconds in 1 year = 3652460*60 = 3.16x107 v = d/t = 2 (3.14) 1.5x108 km/ 3.16x107 s = 3.0 x 10 km/s how to replace windows in mobile homeWebMar 3, 2024 · The Greeks already knew the earth was round and regarded it as a circle of 360 degrees and so by dividing 360 by 7.2 (so that 360 would divide evenly) he arrived at a circumference for the earth of 250.000 stades (approximately 24,854 miles/40,000 km). how to replace windows in brick homeWebEarth's land is 29.2%, or 148.94 million km 2 (57.51 million sq mi) of Earth's surface area. Earth's land consists of many islands around the globe, but mainly of four continental … how to replace window switch 2003 silveradoWebMay 5, 2024 · We put satellites in orbit to better measure and map the Earth, and we could finally get a pretty accurate measure of the Earth’s circumference of about 40,075 km at the equator. That’s is pretty impressive, but it turns out that this result had already been discovered by a mathematician called Eratosthenes of Cyrene more than 2000 years … how to replace windows with brick exterior