19 FEBRUARY 2021
A global period of upheaval 42,000 years ago was the result of a reversal in Earth s magnetic field, new research has found.
According to radiocarbon preserved in ancient tree rings, several centuries worth of climate breakdown, mass extinctions, and even changes in human behaviour can be directly linked to the last time Earth s magnetic field changed its polarity.
The research team has named the period the Adams Transitional Geomagnetic Event, or Adams Event, after sci-fi writer Douglas Adams, who famously declared the number 42 the ultimate answer to life, the Universe, and everything. For the first time ever, we have been able to precisely date the timing and environmental impacts of the last magnetic pole switch, said Earth scientist Chris Turney of the University of New South Wales in Australia.
ETH researchers are among the first scientists to have succeeded in propelling microvehicles against a fluid flow using ultrasound. In future, these tiny.
Company ) is pleased to announce that a drone magnetic survey by Zonge International, Inc. is underway at the Majuba Hill Porphyry Copper Project in Pershing County, Nevada. The magnetic coverage is being expanded because of the very encouraging results from a 2018 ground magnetic survey over part of the project area.
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The 2018 ground magnetic survey covered the known oxide, the oxide extension, and the sulfide target zones. Two magnetic lows were interpreted from the data and a distinct association was observed between the magnetic lows and high copper values in historic drilling, surface geochemical sampling, and the historic underground copper mine at Majuba.
Our astronomers have helped make a huge map of the night sky showing more than 25,000 active supermassive black holes in distant galaxies. The map is the.