Could magnetic reversals be caused by meteorite or cometary impacts? Could reversals be caused by melting of the polar ice caps or some sort of planetary alignment?
One of the most important jobs that a scientist has is to identify -- from among all the possible causes an
Could the mass extinctions observed in the paleontological record be correlated with magnetic reversals?
The magnetic field of the Earth does protect us from fast-moving charged particles streaming from the Sun, and so does the atmosphere.
The strength of the magnetic field has been decreasing lately, does this mean that we are about to have a reversal?
Almost certainly not. Direct historical measurements of the intensity of the geomagnetic field have been possible ever since Gauss invented the magnetometer in the 1830's.
- 1 of 3
- next ›