Science
A 41,000-year-old secret could predict the next shift in Earth – Inverse
Scientists recently discovered a 5.5 meter-long sediment core taken from the bottom of Lake Selina, Tasmania, unpacking 270,000 years of Earth’s history.
About 41,000 years ago, something remarkable happened:
Earths magnetic field flipped and, for a temporary period, magnetic north was south and magnetic south was north.
Palaeomagnetists refer to this as a geomagnetic excursion. This event, which is different to a complete magnetic pole reversal, occurs irregularly through time and reflects the dynamics of Earths molten outer core.
The strength of Earths magnetic field would have almost vanished during the event, called the Laschamp excursion, which…
-
General20 hours agoCoroner to examine treatment of woman who died three days after surgery performed by former Queensland premier’s partner
-
Business19 hours agoWhy Antipa, Cettire, Magnetic Resources, and Steadfast shares are pushing higher
-
General21 hours agoToo skewed, too gentlemanly | The Spectator Australia
-
General22 hours agoAlbanese beats drum on economy as trade clouds gather