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Apr 12, 2019

Fluc­tu­a­tions in the void

Posted by in categories: particle physics, quantum physics

In quantum physics, a vacuum is not empty, but rather steeped in tiny fluctuations of the electromagnetic field. Until recently it was impossible to study those vacuum fluctuations directly. Researchers at ETH Zurich have developed a method that allows them to characterize the fluctuations in detail.

Emptiness is not really empty – not according to the laws of , at any rate. The vacuum, in which classically there is supposed to be “nothing,” teems with so-called according to quantum mechanics. Those are small excursions of an electromagnetic field, for instance, that average out to zero over time but can deviate from it for a brief moment. Jérôme Faist, professor at the Institute for Quantum Electronics at ETH in Zurich, and his collaborators have now succeeded in characterizing those vacuum fluctuations directly for the first time.

“The vacuum fluctuations of the electromagnetic field have clearly visible consequences, and among other things, are responsible for the fact that an atom can spontaneously emit ,” explains Ileana-Cristina Benea-Chelmus, a recently graduated Ph.D. student in Faists laboratory and first author of the study recently published in the scientific journal Nature. “To measure them directly, however, seems impossible at first sight. Traditional detectors for light such as photodiodes are based on the principle that light particles – and hence energy – are absorbed by the detector. However, from the vacuum, which represents the lowest energy state of a physical system, no further energy can be extracted.”

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Apr 12, 2019

SpaceX Lands All 3 Boosters of the World’s Most Powerful Rocket

Posted by in categories: drones, space travel

The first commercial flight of SpaceX’s Falcon Heavy ended with two boosters touching down on land while a third alighted on its drone ship out at sea.

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Apr 12, 2019

Undoing Aging 2019: Highlights and Impressions

Posted by in categories: biotech/medical, government, life extension, policy

Guest writer Dr. Asimina Pantazi gives her impressions of the recent Berlin Undoing Aging Conference from the point of view of someone working in research.

As a millennial with limited orientation abilities but expertise with digital tools, I used Google Maps to find the venue, fearing that I would have no data and would get lost in Berlin, only to find out that I was only a couple of meters away from to the venue entrance.

The Undoing Aging 2019 conference took place on May 28–30 at Umspannwerk Alexanderplatz: a multi-level industrial setting, with metal stairs, funky lights, and a balcony overlooking the minimal conference hall. This gave me my first positive vibes.

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Apr 12, 2019

Scientists can now keep brains alive without a body

Posted by in categories: biotech/medical, neuroscience

A team of scientists recently revealed they’d successfully conducted experiments on hundreds of pigs that involved keeping their brains alive for up to 36 hours after the animals had been decapitated.

Maybe Sergio Canavero, the mad scientist who wants to perform a brain transplant on a human, isn’t so crazy after all.

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Apr 12, 2019

Científicos descubren sistema digestivo en miniatura dentro de un tumor pulmonar

Posted by in category: biotech/medical

Las células cancerígenas habían formado en el pulmón del paciente un minisistema digestivo con estómago, duodeno e intestino.

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Apr 12, 2019

Deep Knowledge Analytics Photo

Posted by in categories: biotech/medical, robotics/AI

Announces the publication of a new open-access quarterly report: AI for Drug Discovery, Biomarker Development and Advanced R&D Landscape Overview 2019/Q1. Except for providing the analysis of 350 investors, 50 corporations and 150 companies operating in the field, the main events that took place in the industry from January to March 2019 are covered. The report also features the list of 30 leading R&D centers that provide important researches in the segment.

Link to the Report:

#AI #artificialintelligence #drugdiscovery

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Apr 12, 2019

Welcome to Your Home on Mars

Posted by in category: space

Never mind how to get there—what will we live in on the Red Planet? Personal Tech columnist David Pierce examines designs from Bjarke Ingels, Foster + Partners and others.

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Apr 12, 2019

TRANSHUMANIA is creating videos on science, philosophy, and futurism

Posted by in categories: science, transhumanism

Become a patron of TRANSHUMANIA today: Read posts by TRANSHUMANIA and get access to exclusive content and experiences on the world’s largest membership platform for artists and creators.

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Apr 12, 2019

Today in Science History: The third manned lunar landing mission, Apollo 13, kicked off with the launch of the Odyssey spacecraft

Posted by in categories: science, space travel

On April 13, the crew had already traveled 200,000 miles away from Earth when one of the oxygen tanks exploded, forcing them to abort the mission and head back, fighting for their own survival.

You may be familiar with the immortal line “Houston, we have a problem,” which was supposedly uttered by Lovell in the 1995 film “Apollo 13.” Actually, the real quote was “Houston, we’ve had a problem,” and it was Swigert who said it.


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Apr 11, 2019

‘Mindreading’ neurons simulate decisions of social partners

Posted by in category: neuroscience

Scientists have identified special types of brain cells that may allow us to simulate the decision-making processes of others, thereby reconstructing their state of mind and predicting their intentions. Dysfunction in these ‘simulation neurons’ may help explain difficulties with social interactions in conditions such as autism and social anxiety.

Researchers at the University of Cambridge identified the previously-unknown neuron type, which they say actively and spontaneously simulates mental decision processes when social partners learn from one another.

The study, published today in Cell, suggests that these newly-termed ‘simulation neurons’ — found in the amygdala, a collection of nerve cells in the temporal lobe of the brain — allow animals (and potentially also humans) to reconstruct their social partner’s state of mind and thereby predict their intentions.

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