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Dec 4, 2023

The World’s Oldest Forest Has 385-Million-Year-Old Tree Roots

Posted by in category: futurism

A trove of arboreal fossils pushes back the origin of modern forests and sophisticated tree roots.

Dec 3, 2023

Elon Musk’s Latest Update on Tesla’s Full Self-Driving Tech

Posted by in categories: Elon Musk, robotics/AI, transportation

Elon Musk discusses the progress and challenges of Tesla’s full self-driving technology, expressing less optimism about its timeline but recognizing its potential value and impact on the future of transportation.

Questions to spark discussion.

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Dec 3, 2023

Implementing AI? Healthcare organizations ‘must have a specific measurable goal’

Posted by in category: robotics/AI

Panelists include Albert Marinez, chief analytics officer at the Cleveland Clinic; Tatyana Fedotova, director, global data, platforms and partnerships, at Johnson & Johnson; and Christopher Larkin, chief technology officer at Concord Technologies.

Panelists will reveal the most critical questions to ask and decisions to be made at each phase of the AI journey, from build versus buy and tool selection to ensuring AI investments are targeted for maximum impact, and much more.

Dec 3, 2023

With a quantum “squeeze,” clocks could keep even more precise time, MIT researchers propose

Posted by in categories: cosmology, quantum physics

More stable clocks could measure quantum phenomena, including the presence of dark matter.

A new MIT study finds that even if all noise from the outside world is eliminated, the stability of clocks, laser beams, and other oscillators would still be vulnerable to quantum mechanical effects.

Clocks, lasers, and other oscillators could be tuned to super-quantum precision, allowing researchers to track infinitesimally small differences in time, according to a new MIT study.

Dec 3, 2023

Why the hard problem of consciousness is an illusion

Posted by in category: neuroscience

In this video, I discuss the famous “hard problem” of consciousness and why it is only a problem from the perspective of the thinking mind.

Dec 3, 2023

Superconducting nanowires detect single protein ions

Posted by in categories: nanotechnology, quantum physics

An international research team led by quantum physicist Markus Arndt (University of Vienna) has achieved a breakthrough in the detection of protein ions: Due to their high energy sensitivity, superconducting nanowire detectors achieve almost 100% quantum efficiency and exceed the detection efficiency of conventional ion detectors at low energies by a factor of up to a 1,000.

In contrast to conventional detectors, they can also distinguish macromolecules by their impact energy. This allows for more sensitive detection of proteins and it provides additional information in mass spectrometry.

  • Breakthrough in protein ion detection using superconducting nanowire detectors, significantly outperforming conventional methods.

  • Dec 3, 2023

    Pathogens use force to bypass the immune system, new research says

    Posted by in category: biotech/medical

    Researchers have found that some pathogens can use physical force to enter and survive inside cells, bypassing the immune system. This could lead to new ways of fighting intracellular infections.


    Toxoplasma as intracellular pathogen.

    Continue reading “Pathogens use force to bypass the immune system, new research says” »

    Dec 3, 2023

    Study illuminates formation of US east coast during break up of supercontinent Pangea

    Posted by in category: climatology

    A recent study published in the Journal of Geophysical Research: Solid Earth sheds new light on the formation of the East Coast of the United States—a “passive margin,” in geologic terms—during the breakup of the supercontinent Pangea and the opening of the Atlantic Ocean around 230 million years ago.

    In geology, passive margins are “quiet” areas, locations with minimal faulting or magmatism, where land meets the . Understanding their formation is crucial for many reasons, including that they are stable regions where hydrocarbon resources are extracted and that their sedimentary archive preserves our planet’s climate history as far back as millions of years.

    The study, co-authored by scientists from the University of New Mexico, SMU seismologist Maria Beatrice Magnani, and scientists from Northern Arizona University and USC, explores the structure of rocks and the amount of magma-derived rocks along the East Coast and how they change along the margin, which may be tied to how the continent was pulled apart when Pangea fragmented. This event may have also influenced the structure of the Mid-Atlantic Ridge, a vast underwater mountain system running down the center of the Atlantic Ocean.

    Dec 3, 2023

    A new possible explanation for the Hubble tension

    Posted by in category: space

    The universe is expanding. How fast it does so is described by the so-called Hubble-Lemaitre constant. But there is a dispute about how big this constant actually is: Different measurement methods provide contradictory values.

    This so-called “Hubble tension” poses a puzzle for cosmologists. Researchers from the Universities of Bonn and St. Andrews are now proposing a new solution: Using an alternative theory of gravity, the discrepancy in the measured values can be easily explained—the Hubble tension disappears. The study has now been published in the Monthly Notices of the Royal Astronomical Society (MNRAS).

    The causes the galaxies to move away from each other. The speed at which they do this is proportional to the distance between them. For instance, if galaxy A is twice as far away from Earth as galaxy B, its distance from us also grows twice as fast. The US astronomer Edwin Hubble was one of the first to recognize this connection.

    Dec 3, 2023

    Meteorites likely source of nitrogen for early Earth, Ryugu samples study finds

    Posted by in categories: materials, space

    Micrometeorites originating from icy celestial bodies in the outer solar system may be responsible for transporting nitrogen to the near-Earth region in the early days of our solar system. That discovery was published in Nature Astronomy by an international team of researchers, including University of Hawai’i at Mānoa scientists, led by Kyoto University.

    Nitrogen compounds, such as ammonium salts, are abundant in material born in regions far from the sun, but evidence of their transport to Earth’s orbital region had been poorly understood.

    “Our recent findings suggest the possibility that a greater amount of than previously recognized was transported near Earth, potentially serving as for life on our planet,” says Hope Ishii, study co-author and affiliate faculty at the Hawai’i Institute of Geophysics and Planetology in the UH Mānoa School of Ocean and Earth Science and Technology (SOEST).

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