This swirling marble is really a view of the inside of the Earth - made with earthquakes
This swirling marble is really a view of the inside of the Earth - made with earthquakes http://t.co/r5q0Dm4CVe http://t.co/OGpx4gqzxl
by :New Scientist
at :Mon Mar 16 17:08:18 +0000 2015
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