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Earth

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Can you find the Earth in this picture?[1]

Earth (pronounced "erth", not "e-arth") is one of nine eight eleven (so far) n[2] planets (specifically, a rocky one due to its solid surface, as with the rest of the first four planets, though the majority of the rock on our own planet is underwater) in the solar system orbiting a star, sometimes called Sol in random science fiction stories. While some believe there is intelligent life on Earth, others are too smart to really believe this.

Earth is also one of the four fundamental elements the Greeks philosophized about, the others being water, air and fire. Some people consider their philosophical ruminations to be somewhat naive. If you consider that they were doing said philosophizing a good few thousand years ago, and the four elements line up pretty well with solid, liquid, gas and plasma, perhaps they were not too far off the mark after all.

Fun facts about the Earth[edit]

  • Most of its inhabitants believe that the Earth is an oblate spheroid, a sphere just slightly appearing to have been "pushed in" a bit on the poles so the equator "bulges out" a bit more than on a perfectly spherical object. A highly vocal, loony, and nasally minority seem to think that it is flat, presumably squarish. This RationalWiki editor believes that it is a dodecahedron.
  • Despite the fact that "Earth" means dirt, most of Earth's surface is covered by water. Curiously, while water is absolutely vital to continued life as humans know it, most of the Earth's water, if consumed in sufficient quantities, would kill humans.
  • The Earth's environment is seemingly quite fragile. However, since it is our God-given right to trash it[3], dammit we're gonna do it.
  • Everyone that has ever lived and everyone you have ever known has been from Earth. Deep, ain't it? Alien abductionists may disagree with this.
  • Earth's star, Sol (though possession probably should belong to Sol and not Earth), is considered to be average as stars go. How's that for weird?
  • Earth lost out to Mars when all of the planetary bodies of the Solar System voted for Most Likely to Support Life. But, who's laughing now?
  • It is the only planet in the solar system not named after a Roman god / goddess in the English language.[4] However, the dwarf planets Haumea and Makemake are named after Hawaiian and Easter Island deities respectively, whilst Eris is named after the Greek goddess of discord.
  • It is the only known planet with RationalWiki, Minecraft, and feminism
  • It is also the only known planet with MRAs, the Religious Right and Scientology.
  • Its inhabitants are "Mostly Harmless"(caps intentional)
  • It has yet to create a sustainable civilization.[5][6]

Dull facts about the Earth[edit]

  • Radius (volumetric mean) = 6371.0 km
    • Equatorial = 6378.1 km
    • Polar = 6356.8 km
    • Crust depth = 25 km (varies)
    • Mantle thickness = 2860 km
    • Core = 3480 km
  • Mass = 5.97219E24 kg
    • Atmosphere = 5.1E18 kg
    • Hydrosphere = 1.4E21 kg
    • Crust = 3.4E22 kg
    • Mantle = 4.0E24 kg
    • Core = 1.9E24 kg
  • Distance from the Sun = 1.4960E11 m
  • Distance from the Moon = 3.8440E8 m
  • Escape velocity = 11.186 km/s
  • Bond albedo = 0.306
  • Surface temperature = 288 K
  • Gravitational binding energy = 2.5E32 J
  • Moment of inertia = 8.02E37 kg m²
  • Density = 5514.8 kg/m³
    • Atmosphere (surface) = 1.217 kg/m³
    • Crust = 2700 kg/m³
    • Mantle = 4500 kg/m³
    • Core = 1.1E4 kg/m³

See also[edit]

References[edit]

  1. Voyager 1, 1990
  2. Fuck the IAU and its fascist definition of what a planet is!
  3. Just ask former U.S. Secretary of the Interior James Watt
  4. For the sake of gratuitous pedantry, the names are in the Latin language, and borrowed into English. And technically, Uranus was a figure from Greek mythology, not Roman; his equivalent in Roman mythology was Caelus.
  5. The Kardashev Scale Type 0: Why Earth is a Level Zero Civilization, Futurism
  6. For the record, a civilization becomes sustainable when it reaches Type I on the Kardashev scale, which, if we don't wipe ourselves out, should happen by 12200 HE (2200 CE). Pre-industrial Type 0 civilizations have a good chance of being wiped out by outside forces, while industrial/post-industrial Type 0 civilizations such as ours have a good chance of wiping themselves out, especially when they inevitably discover that E=mc2.