Year 2022 😗
AI observed videos of lava lamps and inflatable air dancers and identified dozens of physics variables that scientists don’t yet understand.
Category: physics – Page 128
Year 2022 What they find is a new type of physics generated by their artificial intelligence.
The determination of state variables to describe physical systems is a challenging task. A data-driven approach is proposed to automatically identify state variables for unknown systems from high-dimensional observational data.
OzGrav is turning Albert Einstein’s imagination into reality as they pursue groundbreaking discoveries in the rapidly expanding area of gravitational wave physics. Read the article to find out more.
Year 2022 face_with_colon_three
Since the discovery of black holes, they have inspired images of the universe’s extremities in both scientists and storytellers. Their immense gravity — sucking in any matter and light unfortunate enough to come within grabbing distance — conjures images of crushing death and infinite possibility.
That same gravity, however, creates a well which consumes indiscriminately and from whence nothing can ever emerge. The only trouble is that isn’t the case. Among Stephen Hawking’s many accomplishments was the discovery that black holes actually radiate very slowly and will eventually evaporate. This discovery, while enough to make Hawking famous, threw a wrench in contemporary astrophysics by creating a paradox.
If a black hole compresses into a singular point at its center and is surrounded by a gravitational event horizon, then the radiation emerging from the horizon is necessarily separate from the matter in the middle. In short, that radiation contains none of the information related to the matter which fell inside. If that’s true, then causality essentially breaks down around a black hole and physicists didn’t like that one bit.
Extended special relativity describes how the universe would look if you broke the speed of light.
Scientists from the University of Warsaw in Poland and the National University of Singapore are pushing the limits of relativity with a new theory called the “extension of special relativity,” a report from Science Alert reveals.
The scientists’ new study suggests that objects may be able to go faster than the speed of light without completely shattering our current laws of physics.
Gremlin/iStock.
John Horton Conway, born on December 26th, 1937, was a brilliant mathematician known for his contributions to a diverse array of disciplines, including group theory, number theory, algebra, geometric topology, theoretical physics, and geometry. Despite being viewed as a potential candidate for the title of greatest living…
Image credit: Max Planck Institute of Plasma physics. Cutaway of a Fusion Reactor.
A team of researchers from the Max Planck Institute for Plasma Physics (IPP) and the Vienna University of Technology (TU Wein) have discovered a way to control Type-I ELM plasma instabilities, that melt the walls of fusion devices. The study is published in the journal Physical Review Letters.
There is no doubt that the day will come when fusion power plants can provide sustainable energy and solve our persistent energy problems. It is the main reason why so many scientists around the world are working on this power source. Power generation in this way actually mimics the sun.
Nothing can go faster than light. It’s a rule of physics woven into the very fabric of Einstein’s special theory of relativity. The faster something goes, the closer it gets to its perspective of time freezing to a standstill.
Go faster still, and you run into issues of time reversing, messing with notions of causality.
But researchers from the University of Warsaw in Poland and the National University of Singapore have now pushed the limits of relativity to come up with a system that doesn’t run afoul of existing physics, and might even point the way to new theories.
More energy out than in. For 7 decades, fusion scientists have chased this elusive goal, known as energy gain. At 1 a.m. on 5 December, researchers at the National Ignition Facility (NIF) in California finally did it, focusing 2.05 megajoules of laser light onto a tiny capsule of fusion fuel and sparking an explosion that produced 3.15 MJ of energy—the equivalent of about three sticks of dynamite.
“This is extremely exciting, it’s a major breakthrough,” says Anne White, a plasma physicist at the Massachusetts Institute of Technology, who was not involved in the work.
Mark Herrmann, who leads NIF as the program director for weapons physics and design at Lawrence Livermore National Laboratory, says it feels “wonderful,” adding: “I’m so proud of the team.”
