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Earth's Magnetic Field Flipped 42,000 Years Ago. The Consequences Were Dramatic

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. ....

New Zealand , Douglas Adams , Chris Turney , University Of New South Wales , Adams Transitional Geomagnetic Event , Adams Event , New South Wales , Amp Quot , புதியது ஜீலாந்து , டக்ளஸ் ஆடம்ஸ் , கிறிஸ் டர்னி , பல்கலைக்கழகம் ஆஃப் புதியது தெற்கு வேல்ஸ் , ஆடம்ஸ் நிகழ்வு , புதியது தெற்கு வேல்ஸ் ,

Swimming upstream on sound waves

ETH researchers are among the first scientists to have succeeded in propelling microvehicles against a fluid flow using ultrasound. In future, these tiny. ....

Daniel Ahmed , Bradley Nelson , Process Engineering , Machine Intelligence , Nature Machine Intelligence , Eth Zurich , Blood Vessels , Micro Surgery , Cancer Drug , பிராட்லி நெல்சன் , ப்ரோஸெஸ் பொறியியல் , இயந்திரம் உளவுத்துறை , இயற்கை இயந்திரம் உளவுத்துறை , எத் ஸுரி , இரத்தம் நாளங்கள் , மைக்ரோ அறுவை சிகிச்சை , புற்றுநோய் மருந்து ,

Bam Bam Expanding Magnetic Coverage with Drone Survey at Majuba Hill Porphyry Project, Nevada

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.
Figure 1
To view an enhanced version of Figure 1, please visit:
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. ....

United States , United Kingdom , British Columbia , Joel Warawa , Npb Bam , David Greenway , Majuba Hill , Bam Majuba Hill , Davidc Greenway , El Buster Hunsaker , National Instrument , Newsfile Corp Bam Expanding Magnetic Coverage , Drone Survey At Majuba Hill Porphyry , Union Pacific , Bam Resources Corp , British Columbia Newsfile Corp , Zonge International Inc , Neither The Canadian Securities Exchange , Corporate Communications , Canadian Securities Exchange , Bam Expanding Magnetic Coverage , Drone Survey , Majuba Hill Porphyry Project , Bam Resources , Zonge International , Majuba Hill Porphyry Copper Project ,

Starry night or black holes?

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. ....

Durham University Public , Durham University , Black Hole , டர்ஹாம் பல்கலைக்கழகம் பொது , டர்ஹாம் பல்கலைக்கழகம் , கருப்பு துளை ,

Heat loss control method in fusion reactors

The TCV Tokamak at EPFL’s Swiss Plasma Center © A. Herzog / EPFL
The core of a fusion reactor is incredibly hot. Hydrogen that inevitably escapes from it must be cooled on its way to the wall, as otherwise, the reactor wall would be damaged. Researchers from the Dutch institute DIFFER and EPFL’s Swiss Plasma Center have developed a strict measurement and control method for the cooling of very hot particles escaping from fusion plasmas. This milestone for fusion research is published in Nature Communications.
“We are going from studying to controlling. This is vital for the future of fusion reactors,” says first author Timo Ravensbergen (DIFFER). “We measure, calculate, and control with incredible speed.” Fusion energy is a promising sustainable energy source. In a fusion reactor, extremely hot hydrogen plasma is kept suspended by magnetic fields. However, there is always a fraction that escapes. To prevent it from damaging the reactor vessel, the escaped hydro ....

Matthijs Van Berkel , Julia Van Leeuwen , Van Berkel , Max Planck Institute For Plasma Physics , Swiss Plasma Center , Nature Communications , Eindhoven University Of Technology , Institute Of Plasma Physics , Christian Theiler Swiss Plasma Center , Energy Systems , Plasma Center , Timo Ravensbergen , Christian Theiler , Eindhoven University , Vrije Universiteit Brussel , Plasma Physics , Max Planck Institute , ஜூலியா வேன் லீவன் , வேன் பெர்க்கேள் , சுவிஸ் பிளாஸ்மா மையம் , இயற்கை தகவல்தொடர்புகள் , நிறுவனம் ஆஃப் பிளாஸ்மா இயற்பியல் , ஆற்றல் அமைப்புகள் , பிளாஸ்மா மையம் , பிளாஸ்மா இயற்பியல் ,