NPR News: Iron Age Potters Carefully Recorded Earth's Magnetic Field — By Accident

Iron Age Potters Carefully Recorded Earth's Magnetic Field — By Accident
The planet's magnetic field is weakening. Scientists aren't sure why, but studying ancient jars could help them find out. The ceramics provide a remarkable window onto Earth's magnetic past.

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Làm đẹp Blog 247 February 14, 2017 at 10:59PM
Category Health & Science