ence X Newsletter Week 35
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olivier hartmanshenn
lun. 4 sept. à 05:32
Dear olivier hartmanshenn,
Here is your customized Science X Newsletter for week 35:
New evidence suggests McDermitt Caldera may be among the largest known lithium reserves in the world
A trio of volcanologists and geologists from Lithium Americas Corporation, GNS Science, and Oregon State University reports evidence that the McDermitt Caldera, on the Nevada/Oregon, border, may host some of the largest known deposits of lithium on Earth. In their project, reported in the journal Science Advances, Thomas Benson, Matthew Coble and John Dilles studied parts of the caldera and developed a theory to explain how so much lithium was formed in the area.
Computer scientists develop open-source tool for dramatically speeding up the programming language Python
A team of computer scientists at the University of Massachusetts Amherst, led by Emery Berger, recently unveiled a prize-winning Python profiler called Scalene. Programs written with Python are notoriously slow—up to 60,000 times slower than code written in other programming languages—and Scalene works to efficiently identify exactly where Python is lagging, allowing programmers to troubleshoot and streamline their code for higher performance.
Scientists use quantum device to slow down simulated chemical reaction 100 billion times
Scientists at the University of Sydney have, for the first time, used a quantum computer to engineer and directly observe a process critical in chemical reactions by slowing it down by a factor of 100 billion times.
A secluded Northern California waterfall is the latest victim of viral fame and crushing crowds
By 10 a.m. on a recent Tuesday, the parking lot at McArthur-Burney Falls Memorial State Park was already full, and the line of cars waiting to enter stretched well back from the entrance.
Japanese astrophysicists suggest possibility of hidden planet in the Kuiper Belt
A pair of astrophysicists, one with Kindai University, the other the National Astronomical Observatory of Japan, both in Japan, have found possible evidence of an Earth-like planet residing in the Kuiper Belt. In their paper published in The Astronomical Journal, Patryk Sofia Lykawka and Takashi Ito describe properties of the Kuiper Belt that they believe are consistent with the existence of a planet not much bigger than Earth.
Climate-changing human activity could lead to 1 billion deaths over the next century, according to new study
If global warming reaches or exceeds two degrees Celsius by 2100, University of Western Ontario's Joshua Pearce says it is likely that mainly richer humans will be responsible for the death of roughly one billion mainly poorer humans over the next century.
Are deep blue seas fading? Oceans turn to new hue across parts of Earth, study finds
A large swath of Earth's oceans changed color over the past 20 years—and human activity is suspected to have caused it, a new study reports.
'Smart' glasses skew power balance with non-wearers, say researchers
Someone wearing augmented reality (AR) or "smart" glasses could be Googling your face, turning you into a cat or recording your conversation—and that creates a major power imbalance, said Cornell researchers.
Hunting for supermassive black holes in the early universe
Supermassive black holes (SMBHs)—black holes with masses exceeding a million times that of the sun—are known to prevail in the universe today. However, it is not clear yet when, where, and how they formed during the 13.8 billion years of cosmic history.
New giant planet shows evidence of possible planetary collisions
A Neptune-sized planet denser than steel has been discovered by an international team of astronomers, who believe its composition could be the result of a giant planetary clash.
New research finds Late Pleistocene glaciations terminated by Earth's axis tilt rather than orbital eccentricity
Glacial cyclicity of the Earth has often been considered on 100,000 year timescales, particularly for the Late Pleistocene (~11,700 to 129,000 years ago) swapping between periods of extensive polar and mountain glacier ice sheets, to warmer interglacial periods when ice sheets and glaciers retreated, with subsequent sea level rise. This is thought to be related to three key drivers affecting the amount of solar radiation reaching Earth from the sun.
How a mere 12% of Americans eat half the nation's beef, creating significant health and environmental impacts
A new study has found that 12% of Americans are responsible for eating half of all beef consumed on a given day, a finding that may help consumer groups and government agencies craft educational messaging around the negative health and environmental impacts of beef consumption.
Quantum computer unveils atomic dynamics of light-sensitive molecules
Researchers at Duke University have implemented a quantum-based method to observe a quantum effect in the way light-absorbing molecules interact with incoming photons. Known as a conical intersection, the effect puts limitations on the paths molecules can take to change between different configurations.
Turncoat T cells underlie assault on small intestine amid gluten-induced chaos of celiac disease
Wheat, barley and rye contain a protein that can produce severe intestinal symptoms in people with celiac disease, and a team of scientists at Columbia University in New York has now identified distinct signatures of immune system cells that drive the disorder.
US military plans to unleash thousands of autonomous war robots over next two years
The United States military plans to start using thousands of autonomous weapons systems in the next two years in a bid to counter China's growing power, US Deputy Secretary of Defense Kathleen Hicks announced in a speech on Monday.
Ancient priest's remains are a first-of-a-kind find for Peru team
A group of Japanese and Peruvian archaeologists have discovered the 3,000-year-old tomb of a priest alongside ceramic offerings in northern Peru.
Evidence shows that, in love, opposites don't actually attract
Despite some conventional wisdom to the contrary, opposites don't actually attract.
How old is the universe exactly? A new theory suggests that it's been around for twice as long as believed
Early universe observations by the James Webb Space Telescope (JWST) cannot be explained by current cosmological models. These models estimate the universe to be 13.8 billion years in age, based on the big-bang expanding universe concept.
Quantum discovery verifies a decades-old theory on how monopoles decay
The field of quantum physics is rife with paths leading to tantalizing new areas of study, but one rabbit hole offers a unique vantage point into a world where particles behave differently—through the proverbial looking glass.
A new method helps to measure cosmological distances more accurately
After a complex statistical analysis of some one million galaxies, a team of researchers at several Chinese universities, and the University of Cordoba was able to publish the results of the study in the journal Nature Astronomy. For over two years, they had been working on the project, which will make possible the determination of cosmological distances with a new and greater degree of precision.
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