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Sep 3, 2020

Researcher proposes universal mechanism for ejection of matter

Posted by in category: cosmology

Black holes can expel a thousand times more matter than they capture. The mechanism that governs both ejection and capture is the accretion disk, a vast mass of gas and dust spiraling around the black hole at extremely high speeds. The disk is hot and emits light as well as other forms of electromagnetic radiation. Part of the orbiting matter is pulled toward the center and disappears behind the event horizon, the threshold beyond which neither matter nor light can escape. Another, much larger, part is pushed further out by the pressure of the radiation emitted by the disk itself.

Every galaxy is thought to have a supermassive black hole at its center, but not all have, or still have, . Those that do are known as active galaxies, on account of their active galactic nuclei. The posits two phases in the matter that accumulates in the central region of an active galaxy: a high-speed ionized gas outflow of matter ejected by the nucleus, and slower molecules that may flow into the nucleus.

A new model that integrates the two phases into a single scenario has now been put forward by Daniel May, a postdoctoral researcher in the University of São Paulo’s Institute of Astronomy, Geophysics and Atmospheric Sciences (IAG-USP) in Brazil. “We found that the molecular phase, which appears to have completely different dynamics from the ionized phase, is also part of the outflow. This means there’s far more matter being blown away from the center, and the active galactic nucleus plays a much more important role in the structuring of the galaxy as a whole,” May told Agência FAPESP.

Sep 3, 2020

Our quantum internet breakthrough could help make hacking a thing of the past

Posted by in categories: cybercrime/malcode, internet, quantum physics

New research shows how the next generation of ultra-secure communication could be possible with existing infrastructure.

Sep 3, 2020

Physicists Made Boats Sail Upside-Down on an Ocean of Levitating Liquid

Posted by in category: physics

It’s like something out of Stranger Things, but with fewer Demogorgons and less of the sinister darkness: physicists have flipped reality on its head, creating their own ‘upside down’ by getting small boats to float underneath a levitating liquid.

Seeing it in action, you would think you were watching some kind of sci-fi movie effect, but it’s all to do with the forces of vertical vibration. It’s already been established that some carefully calibrated vertical shaking can keep liquid suspended inside a container, and here the team has taken advantage of the phenomenon.

Continue reading “Physicists Made Boats Sail Upside-Down on an Ocean of Levitating Liquid” »

Sep 3, 2020

Physicists Create City-Sized Ultrasecure Quantum Network

Posted by in categories: internet, quantum physics

Capable of connecting eight or more users across distances of 17 kilometers, the demonstration is another milestone toward developing a fully quantum Internet.

Sep 3, 2020

Forbes 30 under 30 Asia Innovators 2020 from Pakistan Create PakVitae for the World

Posted by in categories: biotech/medical, engineering, food

Rabia Nusrat, an environmental engineering student, Global UGRAD alumni, in her final year at University of Engineering and Technology, UET, Lahore, Pakistan and the first ideaXme public interviewer, interviews Shayan Sohail Sarwar, Forbes 30 Under 30 Asia Innovator and Chief Technology Officer PakVitae.


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Sep 3, 2020

Artificial Intelligence Tool Diagnoses Alzheimer’s with 95% Accuracy

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

An artificial intelligence algorithm can detect subtle differences in the way people with Alzheimer’s use language.

Sep 3, 2020

Vega rocket launching on return-to-flight mission tonight: Watch it live

Posted by in category: space travel

Arianespace’s Vega rocket is scheduled to fly tonight (Sept. 2) for the first time in more than a year.

The four-stage Vega last launched in July 2019, and that mission did not go well. The 98-foot-tall (30 meters) rocket’s second-stage motor suffered an anomaly, resulting in the loss of the Vega and its payload, the United Arab Emirates’ Falcon Eye 1 Earth-observation satellite.

Sep 3, 2020

Elon Musk Says Settlers Will Likely Die on Mars. He’s Right

Posted by in categories: alien life, Elon Musk

Earlier this week, Elon Musk said there’s a “good chance” settlers in the first Mars missions will die. And while that’s easy to imagine, he and others are working hard to plan and minimize the risk of death by hardship or accident. In fact, the goal is to have people comfortably die on Mars after a long life of work and play that, we hope, looks at least a little like life on Earth.

🌌 You love our badass universe. So do we. Let’s explore it together.

Sep 3, 2020

Scientists spot two black holes merged into never before seen size

Posted by in category: cosmology

Black holes are getting stranger — even to astronomers. They’ve now detected the signal from a long ago violent collision of two black holes that created a new one of a size that had never been seen before.

“It’s the biggest bang since the Big Bang observed by humanity,” said Caltech physicist Alan Weinstein, who was part of the discovery team.

Black holes are compact regions of space so densely packed that not even light can escape. Until now, astronomers only had observed them in two general sizes. There are “small” ones called stellar black holes that are formed when a star collapses and are about the size of small cities. And there are supermassive black holes that are millions, maybe billions, of times more massive than our sun and around which entire galaxies revolve.

Sep 3, 2020

Germany tells Elon Musk he can have whatever he needs for new Berlin plant

Posted by in categories: economics, Elon Musk, robotics/AI, space travel, sustainability

Tesla boss Elon Musk has been told by Germany’s economy minister that he can have whatever he needs for his new electric vehicle manufacturing plant in Berlin.

Musk and Germany economy minister Peter Altmaier had an hour long meeting in Berlin on Wednesday, according to a source familiar with the matter. “The main topics were Tesla’s billions of euros worth of investment in Germany,” the source said.

The duo, who first met six years ago, also spoke about Musk’s projects in areas like space flight and autonomous driving.