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Mar 14, 2021

Physics undergraduate proposes solution to quantum field theory problem

Posted by in categories: information science, particle physics, quantum physics

When physicists need to understand the quantum mechanics that describe how atomic clocks work, how your magnet sticks to your refrigerator or how particles flow through a superconductor, they use quantum field theories.

When they work through problems in quantum field theories, they do so in “imaginary” time, then map those simulations into real quantities. But traditionally, these simulations nearly always include uncertainties or unknown factors that could cause equation results to be “off.” So, when physicists interpret their simulation results into real quantities, these uncertainties amplify exponentially, making it difficult to have confidence that their results are as accurate as necessary.

Now, a pair of University of Michigan physicists have discovered that a set of functions called the Nevanlinna functions can tighten the interpretation step, showing that physicists may be able to overcome one of the major limitations of modern quantum simulation. The work, published in Physical Review Letters, was led by U-M physics undergraduate student Jiani Fei.

Mar 14, 2021

Perseverance’s first image of Helicopter Ingenuity on Mars under rover’s belly

Posted by in categories: futurism, space

On March 122021 NASA’s Perseverance Rover continues to find safe place to deploy Mars Helicopter Ingenuity and collect Mars Samples. Rover’s latest pics from Mars show Helicopter’s shield attached to bottom of the rover. Perseverance will gather samples from Martian rocks and soil using its drill. The rover will then store the sample cores in tubes on the Martian surface. This entire process is called “sample caching”. Mars 2021 is the first mission to demonstrate sample collection on Mars. It could potentially pave the way for future missions that could collect the samples and return them to Earth for intensive laboratory analysis.

For the first flight, the helicopter will take off a few feet from the ground, hover in the air for about 20 to 30 seconds, and land. That will be a major milestone: the very first powered flight in the extremely thin atmosphere of Mars. After that, the team will attempt additional experimental flights of incrementally farther distance and greater altitude. After the helicopter completes its technology demonstration, Perseverance will continue its scientific mission.

Continue reading “Perseverance’s first image of Helicopter Ingenuity on Mars under rover’s belly” »

Mar 14, 2021

World’s First Telescopic Lens Capable of Zooming Your Vision Three Times

Posted by in categories: physics, space

World’s First Telescope Lens Capable Of zooming Your vision Three Time.


Science, science nature articles, physics topics, space information, technolog services, view search history, astronomy articles.

Mar 13, 2021

The Apple Car Is Coming Sooner Than You Think

Posted by in categories: mobile phones, robotics/AI, transportation

Tesla remains the king.

Ranjan KC

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Mar 13, 2021

This Solar Sidewalk Charges Your Phone And Devices

Posted by in category: mobile phones

I wonder if this could be used for empty parking lots. 😃


Platio Solar Pavement turns sidewalks, driveways, patios, balconies and pathways into mini power plants that give free clean energy.

Mar 13, 2021

Spider Excavator

Posted by in category: futurism

😃


This spider excavator with individually moving legs digs anything, anywhere.

Mar 13, 2021

U.S. vs China: The Battle for Bitcoin Mining Supremacy | WSJ

Posted by in category: bitcoin

Chinese bitcoin miners have long dominated the global processing power that runs the bitcoin network with sophisticated equipment and access to cheap electricity. But now, a group of U.S. miners with deep pockets wants to conquer a greater share of the industry. Photo illustration: Clément Bürge.

More from the Wall Street Journal:
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Mar 13, 2021

Beyond Genes and Environment, Random Variations Play Important Role in Longevity

Posted by in categories: genetics, life extension

Summary: It’s not only our genetics and environment that play a role in aging and longevity, it’s also the random, tiny changes that arise on the cellular level.

Source: USC

A new model of aging takes into account not only genetics and environmental exposures but also the tiny changes that randomly arise at the cellular level.

Mar 13, 2021

Novel Alzheimer’s Drug Slows Cognitive Decline in Phase 2 Trial

Posted by in categories: biotech/medical, neuroscience

While topline results from TRAILBLAZER-ALZ showed a 32% slowing of cognitive decline with the anti-amyloid drug donanemab, highly anticipated phase 2 findings provide a more detailed analysis.

Mar 13, 2021

SpaceX prepares for Air Force test connecting an aircraft to its Starlink satellite internet

Posted by in categories: Elon Musk, government, internet, satellites

Elon Musk’s SpaceX is preparing to further expand testing of its Starlink satellite internet in a test for the U.S. Air Force, an FCC request revealed.


Elon Musk’s SpaceX is preparing to further test its Starlink satellite internet in a demonstration for the U.S. Air Force, the company revealed in a recent request to the Federal Communications Commission.

“SpaceX seeks to make minor modifications to its experimental authorization for additional test activities undertaken with the federal government,” the company wrote to the FCC in a filing on Thursday.

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