Wikipedia nonsense - meridian and metre: Difference between revisions
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Combining facts from the Wikipedia articles "History of the metre" and "Meridian" yields an earth circumference of around 80 000 km. | Combining facts from the Wikipedia articles "History of the metre" and "Meridian" yields an earth circumference of around 80 000 km. | ||
== | ==Input== | ||
1) | 1) | ||
Meridian (geography) - Wikipedia, the free encyclopedia | Meridian (geography) - Wikipedia, the free encyclopedia | ||
Line 14: | Line 14: | ||
Wikipedia | Wikipedia | ||
1⁄10,000,000 part of the quarter of a meridian | 1⁄10,000,000 part of the quarter of a meridian | ||
==Output== | |||
From 2: | From 2: | ||
1 m = 1⁄10,000,000 of the quarter of a meridian | 1 m = 1⁄10,000,000 of the quarter of a meridian | ||
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imaginary great circle on the Earth's surface = 80,000,000 m = 80,000 km | imaginary great circle on the Earth's surface = 80,000,000 m = 80,000 km | ||
==Compare with equator== | |||
Compare that with: | Compare that with: | ||
Equator - Wikipedia, the free encyclopedia | Equator - Wikipedia, the free encyclopedia |
Revision as of 2014-04-08T13:00:17
Overview
Combining facts from the Wikipedia articles "History of the metre" and "Meridian" yields an earth circumference of around 80 000 km.
Input
1)
Meridian (geography) - Wikipedia, the free encyclopedia en.wikipedia.org/wiki/Meridian_(geography) Wikipedia A meridian (or line of longitude) is the half of an imaginary great circle on the Earth's surface
2)
History of the metre - Wikipedia, the free encyclopedia en.wikipedia.org/wiki/History_of_the_metre Wikipedia 1⁄10,000,000 part of the quarter of a meridian
Output
From 2:
1 m = 1⁄10,000,000 of the quarter of a meridian
Insert 1:
1 m = 1⁄10,000,000 of the quarter of a (half of an imaginary great circle on the Earth's surface)
Reduce
1 m = 1⁄10,000,000 of 1/4 of 1/2 of imaginary great circle on the Earth's surface 1 m = 1/80,000,000 of imaginary great circle on the Earth's surface
Reformulate
imaginary great circle on the Earth's surface = 80,000,000 m = 80,000 km
Compare with equator
Compare that with:
Equator - Wikipedia, the free encyclopedia en.wikipedia.org/wiki/Equator Wikipedia Other planets and astronomical bodies have equators similarly defined. Earth's equator is about 40,075 kilometres (24,901 mi) long