A new survey of our galaxy by astronomers with VERA in Japan has shown that Earth is both moving faster and is closer to the supermassive black hole at the center of our galaxy than previously thought. But don’t worry, our planet is safe!
A new survey of the Milky Way from Japan suggests our Earth and solar system are both moving faster and residing closer to our Milky Way galaxy’s central, supermassive black hole than astronomers had realized. Image via NAOJ .
This may worth something:
Physics professor advances research on black hole paradox | Cornell Chronicle
Thomas Hartman, right, associate professor of physics, and Amirhossein Tajdini, Ph.D. '20, diagram in 2019 a replica wormhole, a concept associated with quantum gravity. They were two authors of "Replica Wormholes and the Entropy of Hawking Radiation," a paper important to recent progress on the black hole paradox.
* * *
For decades, physicists have theorized on this high-stakes question. At the heart of the so-called "black hole information paradox" is a fundamental incompatibility between the two pillar theories of theoretical physics: general relativity and quantum mechanics.
Black Holes Gain new Powers When They Spin Fast Enough - Universe Today
This property is often summarized by the no-hair theorem. Specifically, the theorem asserts that once matter falls into a black hole, the only characteristic that remains is mass. You could make a black hole out of a Sun’s worth of hydrogen, chairs, or those old copies of National Geographic from Grandma’s attic, and there would be no difference. Mass is mass as far as general relativity is concerned.
But with all its predictive power, general relativity has a problem with quantum theory. This is particularly true with black holes. If the no-hair theorem is correct, the information held within an object is destroyed when it crosses the event horizon. Quantum theory says that information can never be destroyed. So the valid theory of gravity is contradicted by the valid theory of the quanta.
California EDD’s Jobless Claims Still A ‘Black Hole,’ Lawmakers Say – CBS
SACRAMENTO, Calif. (AP/CBS13) — An attempt by California’s Employment Development Department to stem an unemployment benefits scam potentially exceeding $2 billion while reducing a frustrating backlog is failing, two state lawmakers from opposing political parties said Thursday, though others reported fewer problems.
Democratic Assemblywoman Cottie Petrie-Norris, who heads the Assembly Accountability and Administrative Review Committee, said she is seeing “a continued pattern of constituents who get lost in the process.”
Not to change the topic here:
Kyle Walker-Peters: 'I wanted a black hole to just swallow me up' | Football | The Guardian
Kyle Walker-Peters is flat out on the Camp Nou turf. Ousmane Dembélé has just robbed him on the halfway line and run away to score. Barcelona are 1-0 up. Tottenham are heading out of the Champions League. And at this very moment – 9.07pm on 11 December 2018 – a 21-year-old right-back has hit rock bottom.
Two years on, Walker-Peters is reliving the experience. "I wanted a black hole to just swallow me up," he says. "I was laying on the floor. And I remember Danny Rose picking me up. Harry Kane said to me: 'Don't worry, you're playing well, we're fine, keep going.' It was a big, big moment for me."
Councils struggling with 'data black hole' in face of net zero targets
The Demos/Survation survey, commissioned by Icebreaker One, polled 1,061 UK councillors to understand how well councils are responding to the climate and economic crises.
The results suggest that a 'black hole' in the data held by and available to local authorities is threatening their ability to respond to the Covid-19 economic crisis, as well as meet net zero targets.
* * *
The survey also found that whilst councils most frequently consult their own data (73%), nearly 50% (48%) also rely on private sector data to inform decisions around achieving net zero.
China launches gamma ray–hunting satellites to trace sources of gravitational waves | Science |
The China National Space Administration's Chang'e-5 mission, set to return Moon rocks to Earth next week, has grabbed headlines around the world. But China's other space agency, the science-focused National Space Science Center (NSSC) of the Chinese Academy of Sciences (CAS), is making news of its own: Just after 4 a.m.
GECAM's two small satellites—130 centimeters tall and weighing 150 kilograms—are now in identical 600-kilometer-high orbits, but on opposite sides of Earth. From these perches they will watch for the gamma ray bursts that emanate from the merger of ultradense objects, events that also generate gravitational waves, ripples in space-time.
Supreme Court correctly said Texas offered a legal black hole
The Supreme Court on Friday night essentially told Texas to stay in its lane, and the rule of law has thus been reconfirmed.
Texas Attorney General Ken Paxton had urged the court to throw out the apparent election results from four states that President Trump lost relatively narrowly to Joe Biden. He laid out a host of explanations for why he thought fraud and error had occurred in those states to an extent greater than Biden's margin of victory. Some of those allegations had a certain plausibility, while others were absurd.
Happening on Twitter
The Arctic is warming two to three times faster than any other place on Earth, ushering in far-reaching changes to… https://t.co/iu1ccl8abm PBS Fri Dec 11 18:00:31 +0000 2020
@SpaceX @Space_Station It's called the Space "Station", but it's actually moving around Earth at ~25 times the spee… https://t.co/vYVIvrtZsa elonmusk Tue Dec 08 16:57:13 +0000 2020
Every person & company on earth have the capability to help make a cleaner world! If we all do it; the planet will… https://t.co/fLEgpP8DjF henrikfisker (from Los Angeles, CA) Sat Dec 05 16:55:21 +0000 2020
No comments:
Post a Comment