https://science.slashdot.org/story/20/01/24/2239257/gravity-we-might-have-been-getting-it-wrong-this-whole-time?utm_source=rss1.0mainlinkanon&utm_medium=feed preview's
Gravity: We Might Have Been Getting It Wrong This Whole Time

Motoko Kakubayashi, from the Kavli Institute for the Physics and Mathematics of the Universe, writes via Phys.org: Physicists have been looking for laws that explain both the microscopic world of elementary particles and the macroscopic world of the universe and the Big Bang at its beginning, expecting that such fundamental laws should have symmetry in all circumstances. However, last year, two physicists found a theoretical proof that, at the most fundamental level, nature does not respect symmetry. There are four fundamental forces in the physical world: electromagnetism, strong force, weak force, and gravity. Gravity is the only force still unexplainable at the quantum level. Its effects on big objects, such as planets or stars, are relatively easy to see, but things get complicated when one tries to understand gravity in the small world of elementary particles. To try to understand gravity on the quantum level, Hirosi Ooguri, the director of the Kavli Institute for the Physics and Mathematics of the Universe in Tokyo, and Daniel Harlow, an assistant professor at the Massachusetts Institute of Technology, started with the holographic principle. This principle explains three-dimensional phenomena influenced by gravity on a two-dimensional flat space that is not influenced by gravity. This is not a real representation of our universe, but it is close enough to help researchers study its basic aspects. The pair then showed how quantum error correcting codes, which explain how three-dimensional gravitational phenomena pop out from two dimensions, like holograms, are not compatible with any symmetry; meaning such symmetry cannot be possible in quantum gravity. Read more of this story at Slashdot.
2020-01-25 02:15:01
https://www.wired.com/story/scientists-predict-wuhans-outbreak-will-get-much-worse preview's
Scientists Predict Wuhan's Virus Outbreak Will Get Much Worse

New estimates of how far the virus could spread suggest an explosion of cases will hit the Chinese city and more infected individuals will show up abroad.
2020-01-24 19:45:02
https://arstechnica.com/?p=1648459 preview's
After 3000 years, we can hear the “voice” of a mummified Egyptian priest

It's a single vowel sound, not a running string of speech. But it's a start.
2020-01-24 18:45:02
https://www.universetoday.com/144714/giant-planets-could-form-around-tiny-stars-in-just-a-few-thousand-years/ preview's
Giant Planets Could Form Around Tiny Stars in Just a Few Thousand Years

A new study has shown how gas giants (like Proxima c) can exist around Red Dwarf suns, the most common type of star in the Universe The post Giant Planets Could Form Around Tiny Stars in Just a Few Thousand Years appeared first on Universe Today.
2020-01-24 18:15:02
https://www.universetoday.com/144708/osiris-rex-flew-620-meters-above-its-landing-site-confirms-that-its-a-boulder-strewn-nightmare-just-like-the-rest-of-bennu/ preview's
OSIRIS-REx Flew 620 Meters Above its Landing Site. Confirms that it’s a Boulder-Strewn Nightmare, Just Like the Rest of Bennu

NASA’s OSIRIS-REx spacecraft reached its target, asteroid Bennu (101955 Bennu), on December 3rd, 2018. Since then, the spacecraft has been examining the asteroid’s surface, looking for a suitable landing spot to collect a sample. The problem is, Bennu has a much rockier and challenging surface than initially thought. OSIRIS-REx’s (Origins, Spectral Interpretation, Resource Identification, Security, … Continue reading "OSIRIS-REx Flew 620 Meters Above its Landing Site. Confirms that it’s a Boulder-Strewn Nightmare, Just Like the Rest of Bennu" The post OSIRIS-REx Flew 620 Meters Above its Landing Site. Confirms that it’s a Boulder-Strewn Nightmare, Just Like the Rest of Bennu appeared first on Universe Today.
2020-01-24 17:30:03
https://arstechnica.com/?p=1648593 preview's
China locks down 35M people as US confirms second coronavirus case

It’s an emergency in China, but not yet for the rest of the world, WHO says.
2020-01-24 13:45:03
https://www.universetoday.com/144716/a-glitch-caused-curiosity-to-freeze-in-place-but-its-better-now/ preview's
A Glitch Caused Curiosity to Freeze in Place. But It’s Better Now

NASA’s Curiosity Mars rover experienced a technical glitch in its stored memory last week, causing it to temporarily lose its sense of direction and freeze in its tracks. But the talented rover repair team back on Earth enabled a fix, and Curiosity is now back in action. “Partway through its last set of activities, Curiosity … Continue reading "A Glitch Caused Curiosity to Freeze in Place. But It’s Better Now" The post A Glitch Caused Curiosity to Freeze in Place. But It’s Better Now appeared first on Universe Today.
2020-01-24 13:15:02
https://arstechnica.com/?p=1648447 preview's
Why can’t I remember? Model may show how recall can fail

Model may predict why you can’t recall what you know you remember.
2020-01-24 12:15:02
https://science.slashdot.org/story/20/01/23/2152223/scientists-re-create-voice-of-3000-year-old-mummy?utm_source=rss1.0mainlinkanon&utm_medium=feed preview's
Scientists Re-Create Voice of 3,000-Year-Old Mummy

Longtime Slashdot reader vm writes: You don't have to wait until next Halloween to get creeped out. Using 3D printing, medical scanners, and an electronic larynx, researchers have recreated the voice of a 3,000-year-old Egyptian mummy. The tongue has deteriorated over three millennia and all they have so far is a vowel sound but it's a pretty clever way to raise the dead with science. "The researchers then synthesized Nesyamun's voice by 3D printing a model of his airway and connecting it to an electronic larynx, an artificial voice box that provides a noise source," reports Science Magazine. "Based on writings on Nesyamun's coffin and the objects he was buried with, researchers know that he was an Egyptian priest and scribe who likely sang and spoke to the gods as part of his ritual duties. His coffin inscriptions include a wish to 'see and address the gods as he had in his working life.'" The findings have been reported in the journal Scientific Reports. Read more of this story at Slashdot.
2020-01-24 08:15:01
https://arstechnica.com/?p=1648373 preview's
Rocket Report: It takes three years to build an SLS? Long March 5B coming

"We will now redirect our investment from XSP to other Boeing programs."
2020-01-24 07:15:02