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Apr 12, 2019
Fluctuations in the void
Posted by Quinn Sena 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 quantum physics, at any rate. The vacuum, in which classically there is supposed to be “nothing,” teems with so-called vacuum fluctuations 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 light,” 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.”
Apr 12, 2019
SpaceX Lands All 3 Boosters of the World’s Most Powerful Rocket
Posted by Genevieve Klien 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.
Apr 12, 2019
Undoing Aging 2019: Highlights and Impressions
Posted by Steve Hill 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.
Continue reading “Undoing Aging 2019: Highlights and Impressions” »
Apr 12, 2019
Scientists can now keep brains alive without a body
Posted by Paul Battista 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.
Apr 12, 2019
Científicos descubren sistema digestivo en miniatura dentro de un tumor pulmonar
Posted by Paul Battista in category: biotech/medical
Las células cancerígenas habían formado en el pulmón del paciente un minisistema digestivo con estómago, duodeno e intestino.
Apr 12, 2019
Deep Knowledge Analytics Photo
Posted by Franco Cortese 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: https://www.ai-pharma.dka.global/quarter-1-2019
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.
Apr 12, 2019
TRANSHUMANIA is creating videos on science, philosophy, and futurism
Posted by Klaus Baldauf in categories: science, transhumanism
https://youtube.com/watch?v=dh2kWSmxjUo
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.
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 Michael Lance 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.