Science News

On what date of 2021, the nobel prize in medicine being announced.

https://phys.org/news/2021-09-sky-year-old-brazilian-girl-dubbed.html Head in the sky: 8-year-old Brazilian girl dubbed world's youngest astronomer When Nicole Oliveira was just learning to walk, she would throw up her arms to reach for the stars in the sky. Today, at just eight years of age, the Brazilian girl is known as the world's youngest astronomer, looking for asteroids as part of a NASA-affiliated program, attending international seminars and meeting with her country's top space and science figures. extract: "Beaming with pride, Nicolinha told AFP she has already found 18 asteroids. "I will give them the names of Brazilia…

https://plus.maths.org/content/galileo-and-science-deniers Galileo and the Science Deniers by Mario Livio: The title is the name of a book by Mario Livio [have heard of him somewhere] and an account on the life and times of Galileo, and a review of book, Galileo and Mario. I will be making an effort to obtain it as my next read. The followings are extracts from the review that gelled with me.... in a famous quote from Galileo: "I do not feel obliged to believe that the same God who has endowed us with sense, reason, and intellect has intended us to forgo their use." It took a long time, but today Galileo has been vindicated even in the eyes of…

New findings at Whitesands https://ww Earliest definitive evidence of people in Americas By Paul Rincon Science editor, BBC News website Published 2 hours ago image source, Bournemouth University image captionThe footprints belonged to teenagers and children who lived between 23,000 and 21,000 years ago Humans reached the Americas at least 7,000 years earlier than previously thought, according to new findings. w.bbc.co.uk/news/science-environment-58638854

https://phys.org/news/2021-09-spacex-tourist-crew-healthy-happy.html SpaceX's tourist crew 'healthy, happy and resting': Extract: Its main goal, however, is to prove that space is accessible to ordinary people as the United States and private companies like SpaceX seek to further commercialize the cosmos. :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: OK, don't get me wrong, as personally I would jump at the chance to be a part of something like this. But I can't help thinking, shouldn't an astronaut/professional be part of the payload? Great to see automation and remote control from E…

https://phys.org/news/2021-09-black-holes-exert-pressure-environment.html Black holes found to exert a pressure on their environment: Physicists at the University of Sussex have discovered that black holes exert a pressure on their environment, in a scientific first. In 1974 Stephen Hawking made the seminal discovery that black holes emit thermal radiation. Previous to that, black holes were believed to be inert, the final stages of a dying heavy star. The University of Sussex scientists have shown that they are in fact even more complex thermodynamic systems, with not only a temperature but also a pressure. The serendipitous discover…

https://phys.org/news/2021-09-nasa-space-telescope-december.html NASA's next space telescope to launch in December: The James Webb Space Telescope, which astronomers hope will herald a new era of discovery, will launch on December 18, NASA said Wednesday. more at link....

https://www.smithsonianmag.com/smart-news/study-measuring-earths-vital-signs-warns-climate-tipping-points-180978320/ Study Measuring Earth’s Vital Signs Warns of Climate Tipping Points: The authors say tropical coral reefs, the Amazon rainforest, and the West Antarctic and Greenland ice sheets may have passed dangerous tipping points: This map shows how land and ocean temperatures have changed from June 2021 relative to the 1951-1980 base period. High values (darker red colors) indicate temperatures that are higher than those in the base period. The number in the top right is an estimate of the global mean temperature increase. All temperatures are in…

Excerpt: The Japan Aerospace Exploration Agency (JAXA) has announced that it has successfully demonstrated the operation of a “rotating detonation engine” for the first time in space. The novelty of the technologies in question is that such systems obtain a large amount of thrust by using much less fuel compared to conventional rocket engines, which is quite advantageous for space exploration. Source: https://www.inceptivemind.com/japan-tests-rotating-detonation-engine-first-time-space/20698/

https://newatlas.com/physics/gravitational-waves-dark-matter-black-hole/ Never-before-detected gravitational waves hint at dark matter: A new type of gravitational wave detector running in Western Australia has recorded two rare events that might be signals of dark matter or primordial black holes. These high-frequency gravitational waves are beyond the range of most detectors and have never been recorded before. Gravitational waves are ripples in the very fabric of spacetime, first predicted by Einstein over a century ago but not directly detected until 2015. In the years since, dozens of detections have been made, mostly by facilities like LIGO, which can …

Testing double use for the road. The intention is to not use farming fields. Do not know what to comment. 😐

This looks like no hype at all. My feeling is that this has the makings of a real breakthrough in quantum computing. The possible implications for investigations in climate models, protein-folding, virology models, etc. are mouth-watering. I can't wait for the moment when this chip is finally built. https://phys.org/news/2021-08-critical-advance-quantum.html?fbclid=IwAR2mj_PP9NqXylVALnJQSbysOxzwF4HnU9_zFeNVTBiflnSrTq8phZdNUe0

https://www.washingtonpost.com/local/obituaries/steven-weinberg-nobel-winning-physicist-who-united-principal-forces-of-nature-dies-at-88/2021/07/26/75d8d24a-ee31-11eb-bf80-e3877d9c5f06_story.html Nobel-Prize-winning Steven Weinberg dies at 88. One of the makers of the standard model. His influence in the world of physics in the second half of the 20th century has been only comparable to that of giants as Feynman, Gell-Mann, and 't Hooft. His books Dreams of a Final Theory and The First Three Minutes are a must-read for anybody willing to understand physics and how physicists think. He was notorious for his view of a universe without a purpose. …

On June 7, 2021, NASA’s Juno spacecraft flew closer to Jupiter’s ice-encrusted moon Ganymede than any spacecraft in more than two decades. Less than a day later, Juno made its 34th flyby of Jupiter. This animation provides a “starship captain” point of view of each flyby. For both worlds, JunoCam images were orthographically projected onto a digital sphere and used to create the flyby animation. Synthetic frames were added to provide views of approach and departure for both Ganymede and Jupiter.

Seems like an interesting story " Instead of regularly repeating rows of atoms, a time crystal would exhibit regularly repeating motion." https://www.newscientist.com/article/2119804-worlds-first-time-crystals-cooked-up-using-new-recipe/ http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.118.030401

The following is probably a well known, scientifically based story, about a time when the Earth suffered an almighty blow. It is lengthy, very lengthy, and at the same time detailed, very detailed. I actually followed it by the audio reproduction, which I recommend to others. As I said, very detailed and descriptive, and for an amateur novice such as myself, some of it quite revealing. Hope all take the time to listen and/or read..... https://www.newyorker.com/magazine/2019/04/08/the-day-the-dinosaurs-died?itm_content=footer-recirc The Day the Dinosaurs Died: By Douglas Preston March 29, 2019 ::::::::::::::::::::::::::::::::::::::…

https://phys.org/news/2021-07-collisions-matterantimatter-pure-energy.html Collisions of light produce matter/antimatter from pure energy: Scientists studying particle collisions at the Relativistic Heavy Ion Collider (RHIC)—a U.S. Department of Energy Office of Science user facility for nuclear physics research at DOE's Brookhaven National Laboratory—have produced definitive evidence for two physics phenomena predicted more than 80 years ago. The results were derived from a detailed analysis of more than 6,000 pairs of electrons and positrons produced in glancing particle collisions at RHIC and are published in Physical Review Letters. The primary finding …

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https://phys.org/news/2021-07-methane-plumes-saturn-moon-enceladus.html An unknown methane-producing process is likely at work in the hidden ocean beneath the icy shell of Saturn's moon Enceladus, suggests a new study published in Nature Astronomy by scientists at the University of Arizona and Paris Sciences & Lettres University. Giant water plumes erupting from Enceladus have long fascinated scientists and the public alike, inspiring research and speculation about the vast ocean that is believed to be sandwiched between the moon's rocky core and its icy shell. Flying through the plumes and sampling their chemical makeup, the Cassini spacecraft detected a re…

https://phys.org/news/2021-07-massive-explosion-mystery-star.html New type of massive explosion explains mystery star: A massive explosion from a previously unknown source—10 times more energetic than a supernova—could be the answer to a 13-billion-year-old Milky Way mystery. Astronomers led by David Yong, Gary Da Costa and Chiaki Kobayashi from Australia's ARC Centre of Excellence in All Sky Astrophysics in 3 Dimensions (ASTRO 3D) based at the Australian National University (ANU) have potentially discovered the first evidence of the destruction of a collapsed rapidly spinning star—a phenomenon they describe as a "magneto-rotational hypernova". …

https://phys.org/news/2021-07-earth-cryosphere-square-kilometers-year.html The global cryosphere—all of the areas with frozen water on Earth—shrank by about 87,000 square kilometers (about 33,000 square miles, an area about the size of Lake Superior) per year on average between 1979 and 2016, as a result of climate change, according to a new study. This research is the first to make a global estimate of the surface area of the Earth covered by sea ice, snow cover and frozen ground. The extent of land covered by frozen water is just as important as its mass because the bright white surface reflects sunlight so effectively, cooling the planet. Changes in the size …

https://www.nasa.gov/mission_pages/tdm/clock/index.html Deep Space Atomic Clock (DSAC) Since the 1950s, the gold standard for timekeeping has been ground-based atomic clocks. These clocks measure very stable and precise frequencies of light emitted by specific atoms, using them to regulate the time kept by more traditional mechanical, quartz crystal clocks. This results in a clock system that can remain ultra-stable over decades. While ground-based atomic clocks are phenomenally accurate, their designs are too bulky, power hungry and sensitive to environmental variations to be practical for spacefli…

One of my favorite aquarium fish! I've known for a long time they we special from their behaviors but this video suggests they actually talk. The details are too complex for me to do it justice but the video explains it very well and provides links to the papers the video author uses to make his video. The fish had the biggest brain to body ratio in the vertebrate kingdom and uses electrical impulses to communicate in a way that suggests language. The fishes cerebellum is extra large as well. These fish live in murky water and they school so they communicate to keep the school together but other impulses mimic actual conversations. https://en.wikipedia.org/wiki/Morm…

https://phys.org/news/2021-07-physicists-observationally-hawking-black-hole.html Physicists observationally confirm Hawking's black hole theorem for the first time: There are certain rules that even the most extreme objects in the universe must obey. A central law for black holes predicts that the area of their event horizons—the boundary beyond which nothing can ever escape—should never shrink. This law is Hawking's area theorem, named after physicist Stephen Hawking, who derived the theorem in 1971. Fifty years later, physicists at MIT and elsewhere have now confirmed Hawking's area theorem for the first time, using observations of gravitational wa…

https://phys.org/news/2021-06-hubble-space-telescope-science-halted.html Computer trouble hits Hubble Space Telescope, science halted: The Hubble Space Telescope has been hit with computer trouble, with all astronomical viewing halted, NASA said Wednesday. The orbiting observatory has been idle since Sunday when a 1980s-era computer that controls the science instruments shut down, possibly because of a bad memory board. Flight controllers at NASA's Goddard Space Flight Center in Maryland tried to restart the computer Monday, but the same thing happened. They're now trying to switch to a backup memory unit. If that works, the telescope will be tested fo…