User:Kavri/Sandbox
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Contents |
[edit] Kavri's Sandbox
[edit] Examples
Timeline
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[edit] Castles that Need Keeping
Alternate beginning, brings Kentucky info back up, and changes 'has claimed to hold' to 'claimed to have held' :
English Wikipedia editor and administrator Essjay, later self-identified as Ryan Jordan, was found to have made false claims on his Wikipedia user page and in a phone interview with The New Yorker concerning his age, job, activities, background, and academic credentials. Essjay, who was also briefly employed at Wikia, claimed to have held doctoral degrees in theology and canon law as a tenured professor at a private university, he was in fact a community college dropout. The Courier-Journal of Louisville, Kentucky reported that Jordan had attended but never graduated from Centre College and Bluegrass Community and Technical College (formerly known as Lexington Community College). The paper also stated that despite his claim to have had a three-month special position with a United States bankruptcy trustee, the office had no record that Jordan ever worked there.
[edit] The Earth - Possible use for link to Earth: mostly harmless
see Earth talk page
[{{ ] otheruses1|the planet [ }}]
![]() Famous "Blue Marble" photograph of the Earth, taken from Apollo 17. |
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Orbital characteristics | |
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Epoch J2000 | |
Sidereal period: | 365.256 366 day (1.000 017 5 yr) |
Satellites: | 1 (the Moon) |
Physical characteristics | |
Land area: | 148,939,100 km² (29.2 %) |
Water area: | 361,126,400 km² (70.8 %) |
Atmosphere | |
Composition: | 78.08% N2 20.95% O2 0.93% Argon 0.038% Carbon dioxide Trace water vapor) |
Earth is the third planet from the Sun and is the largest of the terrestrial planets. Earth is also referred to as "the Earth", "Planet Earth", "Gaia", "Terra", or "the World".
This is the only planet known to have liquid water on the surface and the only place in the universe known to harbor life. Earth has a magnetic field that, together with a primarily nitrogen-oxygen atmosphere, protects the surface from radiation that is harmful to life. The atmosphere also serves as a shield that causes smaller meteors to burn up before they strike the surface.
The Earth formed around 4.57 billion years ago[1] and its only known natural satellite, the Moon, began orbiting it around 4.53 billion years ago. At present the Earth orbits the Sun once for every roughly 365.26 times it rotates about its axis. The axial tilt of 23.4° produces seasonal variations on the surface.
Atmospheric conditions on Earth have been significantly altered by the presence of life forms, which create an ecological balance that modifies the surface conditions. About 71% of the surface is covered in salt-water oceans, and the remainder consists of continents and islands. The outer surface is divided into several tectonic plates that gradually migrate across the surface over geologic time spans. The interior of the planet remains active, with a thick layer of convecting yet solid mantle, a liquid outer core that generates a magnetic field, and a solid-iron inner core.
The space environment interacts with the Earth to a significant degree. The relatively large moon provides ocean tides, stabilizes the axial tilt and has gradually modified the length of the planet's rotation period. A cometary bombardment during the early history of the planet played a role in the formation of the oceans. Later, asteroid impacts caused significant changes to the surface environment. Long term periodic changes in the orbit of the planet are believed to have caused the ice ages that have covered significant portions of the surface in glacial sheets.
[edit] See also
- Mosly harmless
- Hitchhiker's Guide to the Galaxy
- Mostly Harmless