The Mystery of Geomagnetic Jerks
Southgate ARC - In the late 1970s, researchers realized something strange was happening to Earth's magnetic field from DXER ham radio news http://bit.ly/2DWgzaV via IFTTT
Southgate ARC - In the late 1970s, researchers realized something strange was happening to Earth's magnetic field from DXER ham radio news http://bit.ly/2DWgzaV via IFTTT