Why Scientists Briefly Thought the Earth Was Hollow

Our understanding of the world has to start somewhere! And while early ideas like the Hollow Earth Theory are mostly wrong and sound silly to us now, that doesn’t mean they weren’t important.

Hosted by: Michael Aranda

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Sources:
https://www.wired.com/2014/07/fantastically-wrong-hollow-earth/
https://books.google.com/books/about/Hollow_Earth.html?id=J1BC7eFLBFcC&printsec=frontcover&source=kp_read_button#v=onepage&q&f=false
https://www.britannica.com/biography/Athanasius-Kircher
https://cosmosmagazine.com/geoscience/what-creates-earth-s-magnetic-field
https://phys.org/news/2015-12-earth-layers.html
https://books.google.com/books?id=fAFvvG3SWgwC&pg=PT48&lpg=PT48&dq=schiehallion+experiment+hollow+earth&source=bl&ots=ROo7TJr0HW&sig=LIuZhsthbIjdrHGjKBIRjm0QG1I&hl=en&sa=X&ved=2ahUKEwic7ZTZ58XeAhVlilQKHdhiBCQ4ChDoATADegQICRAB#v=onepage&q=schiehallion%20experiment%20hollow%20earth&f=false
https://www.britannica.com/biography/Inge-Lehmann
https://www.britannica.com/biography/Edmond-Halley
https://www.britannica.com/biography/Isaac-Newton#ref363996
https://phys.org/news/2005-06-weight-world-year-old-schiehallion.html
http://sjg.lyellcollection.org/content/43/1/15
http://www.princeton.edu/~oa/manual/mapcompass2.shtml
https://www.smithsonianmag.com/smart-news/what-if-newtons-principia-mathematica-published-today-had-been-in-comic-sans-638230/
https://www.britannica.com/biography/Nevil-Maskelyne
https://www.britannica.com/topic/Core-Within-Earths-Inner-Core-The-2046720
http://sjg.lyellcollection.org/content/43/1/15
https://journals.sagepub.com/doi/abs/10.1177/002182869202300304?journalCode=jhaa

Image Sources:
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https://www.videoblocks.com/video/alpha-channel-flames-and-fire-8-dai1vaw
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https://www.istockphoto.com/photo/tyrannosaurus-rex-gm182492703-12223949
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https://commons.wikimedia.org/wiki/File:Lspn_comet_halley.jpg
https://commons.wikimedia.org/wiki/File:Prinicipia-title.png
https://www.istockphoto.com/vector/earth-with-grid-lines-europe-and-africa-gm466584103-34145102
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https://www.istockphoto.com/vector/vintage-sailboat-gm483390489-17408923
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https://www.istockphoto.com/za/photo/nickel-ore-gm506615578-84308003
https://www.istockphoto.com/za/photo/the-iron-ore-on-a-white-background-gm918829382-252730626
https://commons.wikimedia.org/wiki/File:Earth_Magnetic_Field_Declination_from_1590_to_1990.gif
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https://commons.wikimedia.org/wiki/File:Halley_compass_variations_1702.jpg
https://www.istockphoto.com/photo/venus-gm171149710-14407038
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https://www.istockphoto.com/photo/planet-earth-with-some-clouds-americas-view-gm186019678-25156678

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