Alphabet’s Google on Friday fired scientist Margaret Mitchell, she said in a Twitter post, after weeks of being under investigation for moving thousands of files outside the company amid a battle over research freedom and diversity. From a report: Google’s ethics in artificial intelligence research unit has been under scrutiny since December’s dismissal of scientist Timnit Gebru, which prompted protest from…
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Research Linking Violent Entertainment To Aggression Retracted After Scrutiny
Science magazine: As Samuel West combed through a paper that found a link between watching cartoon violence and aggression in children, he noticed something odd about the study participants. There were more than 3000 — an unusually large number — and they were all 10 years old. “It was just too perfect,” says West, a Ph.D. student in social psychology at…
Investigating the wave properties of matter with vibrating molecules
The working group led by Prof. Stephan Schiller, Ph.D. from Heinrich Heine University Düsseldorf (HHU) has used a novel, high-precision laser spectroscopic experiment to measure the internal vibration of the simplest molecule. This allowed the researchers to investigate the wave character of the motion of atomic nuclei with unprecedented accuracy. They present their findings in the current edition of Nature Physics….
First black hole ever detected is more massive than we thought
New observations of the first black hole ever detected have led astronomers to question what they know about the Universe’s most mysterious objects. Source: https://phys.org/news/2021-02-black-hole-massive-thought.html…
Blueprint for fault-tolerant qubits
Building a universal quantum computer is a challenging task because of the fragility of quantum bits, or qubits for short. To deal with this problem, various types of error correction have been developed. Conventional methods do this by active correction techniques. In contrast, researchers led by Prof. David DiVincenzo from Forschungszentrum Jülich and RWTH Aachen University, together with partners from the…
Biden To Order Review of US Reliance on Overseas Supply Chains For Semiconductors, Rare Earths
President Joe Biden will direct his administration to conduct a review of key U.S. supply chains including semiconductors, high-capacity batteries, medical supplies and rare earth metals. From a report: The assessment, which will be led by members of both Biden’s economic and national security teams, will analyze the “resiliency and capacity of the American manufacturing supply chains and defense industrial base…
Juno just saw a spacerock crash into Jupiter
Timing is extraordinarily important in many aspects of astronomy. If an astronomer or their instrument is looking the wrong way at the wrong time, they could miss something spectacular. Alternatively, there are moments when our instruments capture something unexpected in regions of space that we were searching for something else. That is exactly what happened recently when a team of scientists,…
Dark streaks on Mars may be caused by salts and melting ice
Researchers at the SETI Institute say that unusual dark streaks on sun-facing slopes on Mars, debated about for years, may be small landslides caused by a combination of salts and melting ice just below the surface. Source: https://earthsky.org/space/mars-dark-streaks-melting-ice-recurring-slope-lineae…
Who’s Actually To Blame For the Texas Power Disaster?
With millions of Texans still without power in the wake of a winter storm and frigid temperatures, everyone is looking for someone to blame. From a report, shared by a reader: Many Democrats are blaming Gov. Greg Abbott (R) for failing to adequately prepare for the storm. Many conservatives are blaming the environmental movement — insisting that frozen wind turbines show…
A backward-spinning star with two coplanar orbiting planets in a multi-stellar system
In a recent paper in the Proceedings of the National Academy of Sciences a group of researchers led by Maria Hjorth and Simon Albrecht from the Stellar Astrophysics Centre, Aarhus University, have published the discovery of a special exoplanetary system in which two exoplanets are orbiting backward around their star. This surprising orbital architecture was caused by the protoplanetary disk in…