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  2. Flammarion engraving - Wikipedia

    en.wikipedia.org/wiki/Flammarion_engraving

    Flammarion had been apprenticed at the age of twelve to an engraver in Paris and it is believed that many of the illustrations for his books were engraved from his own drawings, probably under his supervision. Therefore, it is plausible that Flammarion himself created the image, though the evidence for this remains inconclusive.

  3. Myth of the flat Earth - Wikipedia

    en.wikipedia.org/wiki/Myth_of_the_flat_Earth

    The famous "Flat Earth" Flammarion engraving originates with Flammarion's 1888 L'atmosphère: météorologie populaire (p. 163). The myth of the flat Earth, or the flat-Earth error, is a modern historical misconception that European scholars and educated people during the Middle Ages believed the Earth to be flat. [1] [2]

  4. Camille Flammarion - Wikipedia

    en.wikipedia.org/wiki/Camille_Flammarion

    Nicolas Camille Flammarion FRAS [1] (French: [nikɔla kamij flamaʁjɔ̃]; 26 February 1842 – 3 June 1925) was a French astronomer and author. He was a prolific author of more than fifty titles, including popular science works about astronomy, several notable early science fiction novels, and works on psychical research and related topics

  5. Earth's inner core - Wikipedia

    en.wikipedia.org/wiki/Earth's_inner_core

    the Earth's mass, its gravitational field, and its angular inertia. These are all affected by the density and dimensions of the inner layers. [20] the natural oscillation frequencies and modes of the whole Earth oscillations, when large earthquakes make the planet "ring" like a bell. These oscillations also depend strongly on the inner layers ...

  6. Lithosphere–asthenosphere boundary - Wikipedia

    en.wikipedia.org/wiki/Lithosphere–asthenosphere...

    Earth's inner structure can be described both chemically (crust, mantle, and core) and mechanically. The lithosphere–asthenosphere boundary lies between Earth's cooler, rigid lithosphere and the warmer, ductile asthenosphere. The actual depth of the boundary is still a topic of debate and study, although it is known to vary according to the ...

  7. Mohorovičić discontinuity - Wikipedia

    en.wikipedia.org/wiki/Mohorovičić_discontinuity

    Earth's crust and mantle, Moho discontinuity between bottom of crust and solid uppermost mantle. The Mohorovičić discontinuity (/ ˌ m oʊ h ə ˈ r oʊ v ɪ tʃ ɪ tʃ / MOH-hə-ROH-vih-chitch; Croatian: [moxorôʋiːtʃitɕ]) [1] – usually called the Moho discontinuity, Moho boundary, or just Moho – is the boundary between the crust and the mantle of Earth.

  8. Earth's mantle - Wikipedia

    en.wikipedia.org/wiki/Earth's_mantle

    The internal structure of Earth. Earth's mantle is a layer of silicate rock between the crust and the outer core. It has a mass of 4.01 × 10 24 kg (8.84 × 10 24 lb) and makes up 67% of the mass of Earth. [1] It has a thickness of 2,900 kilometers (1,800 mi) [1] making up about 46% of Earth's

  9. Large low-shear-velocity provinces - Wikipedia

    en.wikipedia.org/wiki/Large_low-shear-velocity...

    The resulting motion forms small clusters of small plumes right above the core-mantle boundary that combine to form larger plumes and then contribute to superplumes. The Pacific and African LLSVP, in this scenario, are originally created by a discharge of heat from the core (4000 K) to the much colder mantle (2000 K); the recycled lithosphere ...