Latest Geomagnetic reversal Stories
Imagine waking up after a night of camping to find that your compass is pointing south rather than north. It can happen. The magnetic field around Earth has flipped before — though not overnight. In fact, it has happened many times throughout the planet's history.
SAN DIEGO, Feb. 25, 2014 /PRNewswire/ -- Science fiction sometimes foreshadows science fact.
Geologic evidence shows the Earth's magnetic field flips about once every 450,000 years. The last reversal happened about 780,000 years ago, so looking at the average interval, we are overdue.
41,000 years ago, a complete and rapid reversal of the geomagnetic field occured.
Scientists understand that Earth's magnetic field has flipped its polarity many times over the millennia. In other words, if you were alive about 800,000 years ago, and facing what we call north with a magnetic compass in your hand, the needle would point to 'south.'
A newly discovered magnetic phenomenon could accelerate data storage by several orders of magnitude.
- a slit in a tire to drain away surface water and improve traction.