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Jun 21, 2021

Physicists induce motionless quantum state in largest object yet

Posted by in categories: particle physics, quantum physics

“Stationary” has very different meanings at quantum and real-world scales – an object that looks perfectly still to us is actually made up of atoms that are buzzing and bouncing around. Now, scientists have managed to slow down the atoms almost to a complete stop in the largest macro-scale object yet.

The temperature of a given object is directly tied to the motion of its atoms – basically, the hotter something is, the more its atoms jiggle around. By extension, there’s a point where the object is so cold that its atoms come to a complete standstill, a temperature known as absolute zero (−273.15 °C,-459.67 °F).

Scientists have been able to chill atoms and groups of atoms to a fraction above absolute zero for decades now, inducing what’s called the motional ground state. This is a great starting point to then create exotic states of matter, such as supersolids, or fluids that seem to have negative mass.

Jun 21, 2021

Brain imaging study shows defining traits are forged the moment were born

Posted by in categories: food, neuroscience

There are still many unsolved mysteries about the human brain and its development. Now, a novel study published in Frontiers in Psychiatry sheds new light on the neurobiological origins of our individual traits.

Functional connectivity is the coordinated activity – activation or deactivation – through time between separate brain regions, regardless of their physical closeness or the type of neural connections between them. Changes in functional connectivity can be a sign of mental health disorders such as depression, eating disorders, and schizophrenia, and are thought to have developmental origins.

Jun 21, 2021

Tesla unveils its new supercomputer (5th most powerful in the world) to train self-driving AI

Posted by in categories: robotics/AI, supercomputing

Tesla has unveiled its new supercomputer, which is already the fifth most powerful in the world, and it’s going to be the predecessor of Tesla’s upcoming new Dojo supercomputer.

It is being used to train the neural nets powering Tesla’s Autopilot and upcoming self-driving AI.

Over the last few years, Tesla has had a clear focus on computing power both inside and outside its vehicles.

Jun 21, 2021

Evidence Found for Life on Enceladus?

Posted by in categories: food, habitats, space

Breaking — see how an overabundance of methane at Saturn’s ice moon Enceladus may be evidence for life there!

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Jun 21, 2021

NASA inches closer to printing artificial organs in space

Posted by in categories: 3D printing, bioengineering, biotech/medical, life extension

In America, at least 17 people a day die waiting for an organ transplant. But instead of waiting for a donor to die, what if we could someday grow our own organs?

Last week, six years after NASA announced its Vascular Tissue Challenge, a competition designed to accelerate research that could someday lead to artificial organs, the agency named two winning teams. The challenge required teams to create thick, vascularized human organ tissue that could survive for 30 days.

The two teams, named Winston and WFIRM, both from the Wake Forest Institute for Regenerative Medicine, used different 3D-printing techniques to create lab-grown liver tissue that would satisfy all of NASA’s requirements and maintain their function.

Continue reading “NASA inches closer to printing artificial organs in space” »

Jun 21, 2021

Insulin Sensitivity Is A Hallmark Of Longevity

Posted by in categories: biotech/medical, life extension

HOMA calculator:

Papers referenced in the video:
Growth hormone-releasing hormone disruption extends lifespan and regulates response to caloric restriction in mice.

Continue reading “Insulin Sensitivity Is A Hallmark Of Longevity” »

Jun 21, 2021

Scientists at LIGO are one step closer to solving general relativity’s biggest problem

Posted by in categories: cosmology, engineering, particle physics, quantum physics

Scientists are one step closer to solving general relativity’s biggest problem.

To do this, scientists used a new kind of observatory called LIGO (Laser Interferometer Gravitational-wave Observatory) that is fine-tuned to hunt for small disturbances in the fabric of spacetime caused by cosmic collisions, like black hole or neutron star mergers.

But this is only just the beginning of what LIGO can do, a team of international researchers reports in a new study published Thursday in the journal Science. Using new techniques to quantum cool LIGO’s mirrors, the team says that LIGO may soon also help them understand the quantum states of human-sized objects instead of just subatomic particles.

Continue reading “Scientists at LIGO are one step closer to solving general relativity’s biggest problem” »

Jun 21, 2021

HOW ON EARTH did China succeed in landing Zhurong rover on Mars? Review of CNSA deep space missions

Posted by in category: space

As the first Mars rover probe launched by China, Tianwen-1 Zhurong rover has completed the three major technical steps of Mars exploration at one time. The three steps are Orbiting, landing, and patrolling, which are, entering Mars orbit, landing on the surface of Mars, and the rover walking and patrolling around. Why did China’s space agency successfully break the so-called “Mars curse” with its very first Mars rover landing mission? How did the various aerospace technologies involved in the Zhurong landing process develop?

Jun 21, 2021

LIVE: China Launches Shenzhou-12 Manned Spaceship

Posted by in category: space travel

China’s homegrown Long March rocket will send the Shenzhou-12 manned spacecraft, carrying astronauts Nie Haisheng, Liu Boming and Tang Hongbo, to the Chinese Space Station’s core module Tianhe at 9:22 a.m. BJT, or 1:22 a.m. GMT, on Thursday from Jiuquan Satellite Launch Center. It will be China’s seventh crewed space mission, since the country’s first successful manned launch in 2003.

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Jun 20, 2021

Scientists Have Simulated The Primordial Quantum Structure of Our Universe

Posted by in categories: cosmology, particle physics, quantum physics

Peer long enough into the heavens, and the Universe starts to resemble a city at night. Galaxies take on characteristics of streetlamps cluttering up neighborhoods of dark matter, linked by highways of gas that run along the shores of intergalactic nothingness.

This map of the Universe was preordained, laid out in the tiniest of shivers of quantum physics moments after the Big Bang launched into an expansion of space and time some 13.8 billion years ago.

Yet exactly what those fluctuations were, and how they set in motion the physics that would see atoms pool into the massive cosmic structures we see today is still far from clear.

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