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Flat Earth Theory / Re: PREM Model and intern structure of Earth
« on: January 27, 2015, 06:25:22 PM »Why do you have to have a ball to have seismic waves?
Because there is a "shadow zone" with those waves and it can only be explained with a spherical earth. I'm sorry if all your theory is disprove by this but I can't really see how you can deny it (i'm studying geology by the way and i'm not part of any conspiracy)
http://www.emse.fr/~bouchardon/enseignement/processus-naturels/up1/web/la-terre-est-ronde/terre-ronde-geodynamique-0302-geophysique-seismicite_fichiers/image032.jpg