Badai Matahari (Geomagnetic Reversal)





Earth’s magnetic field is approximately a magnetic dipole, with the magnetic field S pole near the Earth’s geographic north pole and the other magnetic field N pole near the Earth’s geographic south pole. Based upon the study of lava flows of basalt throughout the world, it has been proposed that the Earth’s magnetic field dwindles or reverses at intervals, ranging from tens of thousands to many millions of years, with an average interval of approximately 300,000 years. However, the last such event, called the Brunhes-Matuyama reversal, is observed to have occurred some 780,000 years ago.

The earth’s magnetic field protects the earth from cosmic radiations and subatomic particles from space as well as the solar wind. Without such protection we will end up in stone-age and by the way our compasses won’t work anymore either. Worse, the strength of our magnetic field has decreased about 5 percent in the past century.

Source : Smashinglists