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Disprove hollow Earth theory

  1. Oct 14, 2014 #1
    I have a friend who vigorously believes in hollow Earth theory. Your typical dreaded up conspiracy theory hippie type. I've looked around the internet and know there are threads similar to this but I'd like to open up a discussion here. How would one disprove hollow Earth theory? I can't imagine something as obvious as HET is unfalsifiable.

    Thank you
  2. jcsd
  3. Oct 14, 2014 #2


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    the results of seismology would be one
    The reflection of seismic waves off the various layers in the earth
    Seismology proved the outer core was liquid as S waves wont traverse it
    but the inner core is solid as can be seen with its interaction with P waves ...

    from this page


  4. Oct 14, 2014 #3
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