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. WebFind 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
Astronomy Practice 2B! Flashcards Quizlet
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 WebMay 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 … saying bye to gf
Geology quiz 1 review Flashcards Quizlet
WebAug 2, 2024 · The distance between the Earth and the Sun is referred to as astronomical unit (au), which is also a unit for measuring other distances throughout the solar system. … 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 … saying bye to team