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The 1815 panic was followed by several years of mild depression, and then a major financial crisis – the Panic of 1819, which featured widespread foreclosures, bank failures, unemployment, a collapse in real estate prices, and a slump in agriculture and manufacturing. [9] 1822–1823 recession. 1822–1823. ~1 year.
Earth's rotation. Earth's rotation or Earth's spin is the rotation of planet Earth around its own axis, as well as changes in the orientation of the rotation axis in space. Earth rotates eastward, in prograde motion. As viewed from the northern polar star Polaris, Earth turns counterclockwise . The North Pole, also known as the Geographic North ...
A last-quarter moon appears highest at the autumn equinox and lowest at the spring equinox. Non-Western cultures may use a different number of lunar phases; for example, traditional Hawaiian culture has a total of 30 phases (one per day). Lunar libration Animation showing progression of the Moon's phases.
The timeline of human evolution outlines the major events in the evolutionary lineage of the modern human species, Homo sapiens, throughout the history of life, beginning some 4 billion years ago down to recent evolution within H. sapiens during and since the Last Glacial Period . It includes brief explanations of the various taxonomic ranks in ...
28.2 (in 2003) [14] Halley's Comet, Comet Halley, or sometimes simply Halley, officially designated 1P/Halley, is the only known short-period comet that is consistently visible to the naked eye from Earth, [15] appearing every 75–79 years. [1] It last appeared in the inner parts of the Solar System in 1986 and will next appear in mid-2061.
This 30 m (98 ft) diameter crater formed between July 2010 and May 2012 (19 November 2013; 3.7°N 53.4°E ). [1] In planetary geology, a ray system comprises radial streaks of fine ejecta thrown out during the formation of an impact crater, looking somewhat like many thin spokes coming from the hub of a wheel. The rays may extend for lengths up ...