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JCC Go science?

Discussion in 'Community' started by Jabbadabbado, Sep 26, 2012.

  1. mnjedi

    mnjedi Jedi Grand Master star 4

    Registered:
    Nov 4, 2012
    I see.

    Looks like “Immortality, but exclusively for the super wealthy.” Remains unmarked on my “ways in which I am currently living in a distopia.” Bingo card.
     
    Last edited: Nov 19, 2020
  2. VadersLaMent

    VadersLaMent Chosen One star 10

    Registered:
    Apr 3, 2002
  3. dp4m

    dp4m Also a Narc star 10

    Registered:
    Nov 8, 2001


    @Lord Vivec -- thoughts? Too anti-science and pro-philosophy?
     
  4. Lord Vivec

    Lord Vivec Chosen One star 9

    Registered:
    Apr 17, 2006
    So, as an atheist, I believe that when I die my experience of anything and everything vanishes: meaning that during the destruction phase....I end. Whoever emerges in the new zone may be physically me and have my memories, but from my point of view, I stopped experiencing things and that person started. The rematerialized person is no different than of you were to copy my brain in a new body: sure, that might be me, but I, from my point of view, won't experience a thing they do. So you bet that the dying part is a major concern for me.
     
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  5. Ramza

    Ramza Administrator Emeritus star 8 VIP - Former Mod/RSA VIP

    Registered:
    Jul 13, 2008
    That blog post is coming from a weird, one might go so far as to say myopic, angle and assuming that arguments contending a teleporter will kill you are grounded only in the idea that there's a soul, but it's really more just what you think about the nature of consciousness and that cuts across the theist/atheist divide anyway. It's too generous to say it risks being "too anti-science and pro-philosophy" when the author clearly isn't familiar with the philosophical debates on the matter.

    There's an interesting, and I think approachable, article on the numerous problems of teleportation as a thought experiment, plus recommendations for further reading - absolutely no soul required! - over at Aeon.
     
    Last edited: Dec 8, 2020
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  6. Ghost

    Ghost Chosen One star 7

    Registered:
    Oct 13, 2003
    Arvin Ash's videos on the quantum world are so well-animated and well-explained in such a short amount of time! This one is on Quantum Chromodynamics (Gluons, Quarks, and the Strong Nuclear Force)

     
  7. VadersLaMent

    VadersLaMent Chosen One star 10

    Registered:
    Apr 3, 2002
  8. Ghost

    Ghost Chosen One star 7

    Registered:
    Oct 13, 2003
    https://www.usatoday.com/story/news...amazing-science-space-discoveries/3922477001/

    The coronavirus vaccine wasn't the only amazing discovery: A look at all the ways science thrived in 2020

    In 2020, incredible scientific discoveries didn't stop because of the COVID-19 pandemic.

    First and foremost was the phenomenal work done by scientists to study the disease and develop vaccines in record time to put the brakes on the global pandemic. It was a truly Herculean effort by literally thousands of scientists around the world.

    Otherwise, while nothing can compare to the vaccine effort for impact, we discovered there could be water on the sunlit surface of the moon, potentially life on Venus, "Marsquakes" on Mars, and the chance that dozens of intelligent civilizations could be scattered across our Milky Way galaxy.

    Closer to home, we uncovered prehistoric evidence of a ferocious tyrannosaur in Canada, a car-sized turtle in South America, and the oldest bird fossil ever found, dubbed the "wonderchicken."

    And as for us humans, we listened to a mummy speak after 3,000 years, found Africa's oldest human footprints, and even realized that Neanderthals were skilled fishermen.

    Here are just a few of the amazing science stories of 2020:

    We heard the voice of an ancient mummy
    In January, scientists re-created the voice of an ancient, 3,000-year-old Egyptian mummy using 3D printing, medical scanners and an electronic larynx, a study said. They were able to reproduce a single vowel sound, which sounds like something between the vowels in the words "bed" and "bad." Listen for yourself below.

    detailed photos of the sun ever taken. One of the images showed a pattern of turbulent "boiling" plasma that covers the entire sun. The cell-like structures – each about the size of Texas – are the signature of violent motions that carry heat from the inside of the sun to its surface.

    [​IMG]
    Scientists discovered the fossil of a giant turtle
    In February, paleontologists discovered what they called the "reaper of death," a fearsome new species of dinosaur that was the "oldest occurrence of a large tyrannosaur in Canada."

    Also in February, scientists announced the discovery of a huge turtle fossil in South America. It's "one of the largest, if not the largest, turtle that ever existed," scientists said, noting that the colossal, long-extinct beast lived 5 million to 10 million years ago and measured 9½ feet, roughly the size and shape of a midsized car.

    [​IMG]
    NASA's robot detected hundreds of 'marsquakes'
    And that month we also heard about "marsquakes," and the fact that our red neighbor planet had hundreds of quakes over the past year. The marsquakes were recorded by NASA's InSight, a robot spacecraft that landed on Mars in November 2018. "We've finally, for the first time, established that Mars is a seismically active planet," said NASA's Bruce Banerdt.

    [​IMG]
    'Wonderchicken' becomes oldest bird fossil ever
    [​IMG]
    In March, our attention turned to a creature dubbed the "wonderchicken," a seagull-size shorebird with features of ducks, chickens and turkeys. The nearly complete skull was hidden inside nondescript pieces of rock, and it dates to more than 66 million years ago – which makes it the oldest bird fossil ever discovered. (That's less than 1 million years before the asteroid impact that killed off all the large dinosaurs.)

    "The moment I first saw what was beneath the rock was the most exciting moment of my scientific career," said study lead author Daniel Field.

    We also learned about an ancient wormlike creature that's the ancestor of all animals. The tiny thing, about the size of a grain of rice, lived about 555 million years ago.

    We learned Neanderthals were actually skilled fishermen
    Also in March, the reputation of Neanderthals got a boost when we found out that they weren't just the club-wielding brutes of popular legend, hunting and eating only woolly mammoths in frozen northern climates.

    A study, for the first time, suggested that they were skilled fishermen and that seafood was a key ingredient in their diets.

    A comet from outside our solar system paid a visit
    In April, we tracked an unusual visitor from outer space: Comet 2I/Borisov, which astronomers described as a "snowman from a dark and cold place," because “comets are leftover building blocks from the time of planet formation."

    “This is the first time we’ve ever looked inside a comet from outside our solar system,” said NASA astrochemist Martin Cordiner.

    [​IMG]
    Bizarre mammal called 'crazy beast' fossil discovered in Madagascar
    Also in April, we learned about the fossil of a bizarre mammal, called "crazy beast," which was discovered in Madagascar. The skeleton is the most complete for any Mesozoic mammal yet discovered in the Southern Hemisphere.

    The 66-million-year-old opossum-size fossil represented a new species, which the study authors have named "Adalatherium hui," from a Malagasy word meaning “crazy” and the Greek word for “beast.”

    [​IMG]
    Scientists spot 'incredibly rare' Super-Earth
    Meanwhile, in May, scientists announced the discovery of an incredibly rare "Super-Earth," which they said was a "one in a million" find. Also calling it "incredibly rare," New Zealand astronomers say the planet "is one of only a handful that have been discovered with both size and orbit comparable to that of Earth."

    Africa's largest group of human fossil footprints, which were discovered in Tanzania. Thousands of years ago, a group of 17 people took a walk through the mud in eastern Africa. Amazingly, their footprints are still there today, and were recently identified by archaeologists.

    [​IMG]
    We learned there could be 'dozens' of intelligent civilizations in our galaxy
    In June, we got the news that we're probably not alone in our galaxy: There could be "dozens" of intelligent civilizations scattered throughout the Milky Way.

    “There should be at least a few dozen active civilizations in our galaxy under the assumption that it takes 5 billion years for intelligent life to form on other planets, as on Earth,” University of Nottingham astrophysicist Christopher Conselice said.

    This estimate assumes that intelligent life forms on other planets in a similar way as it does on Earth.

    [​IMG]
    An asteroid impact, not volcanoes, killed off dinosaurs
    Also in June we learned for sure that an asteroid impact – not volcanic eruptions – killed off the dinosaurs. The asteroid strike would have released particles and gases high into the atmosphere, blocking out the sun for years and causing permanent winters, a study said.

    "Our study confirms, for the first time quantitatively, that the only plausible explanation for the extinction is the impact winter that eradicated dinosaur habitats worldwide," said study lead author Alessandro Chiarenza of Imperial College London.

    Scientists confirmed the universe is 13.8 billion years old
    The discoveries continued in the second half of the year: Scientists confirmed in July that the universe is 13.8 billion years old. While this estimate had been known, in recent years other scientific measurements had suggested instead the universe may be hundreds of millions of years younger than that. The scientists studied an image of the oldest light in the universe to confirm its age of 13.8 billion years.

    [​IMG]
    Comet Neowise made a rare appearance
    Also in July, folks got a rare chance to spot another interstellar interloper: Comet Neowise. “Discovered on March 27, 2020, by NASA’s Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE) mission, Comet Neowise is putting on a dazzling display for skywatchers before it disappears, not to be seen again for another 6,800 years,” NASA said in July.

    [​IMG]
    Greenland's melting ice sheet passed the point of no return
    Also in August, in unsettling news, scientists said Greenland's melting ice sheet had passed the point of no return. In fact, glaciers on the island have shrunk so much that even if global warming were to stop today, the ice sheet would continue shrinking, a study suggested.

    "Glacier retreat has knocked the dynamics of the whole ice sheet into a constant state of loss," said study co-author Ian Howat, an earth scientist from Ohio State University.

    [​IMG]
    Astronomers see hint of life on Venus
    Scientists in September announced the discovery of a possible sign of life high in the clouds of Venus. Using telescopes based in Chile and Hawaii, astronomers spotted in Venus' clouds the chemical signature of phosphine, a noxious gas that on Earth is associated only with life. Based on the many scenarios the astronomers considered, the team concluded there is no explanation for the phosphine in Venus’ clouds other than the presence of life.

    water had been discovered on the sunlit surface of the moon for the first time. NASA said this was an important revelation that indicates water may be distributed across the lunar surface – and not just limited to its cold, shadowed places such as the poles. This is good news for astronauts at future lunar bases who could tap into those resources for drinking and rocket fuel production.

    “We had indications that H2O – the familiar water we know – might be present on the sunlit side of the moon,” said Paul Hertz, director of the astrophysics division in the science mission directorate at NASA headquarters in Washington. “Now we know it is there. This discovery challenges our understanding of the lunar surface and raises intriguing questions about resources relevant for deep space exploration.”

    There's a metal asteroid out there worth $10,000 quadrillion
    This isn't your typical space rock. Also in October, we found out that the asteroid 16 Psyche – one of the most massive objects in the main asteroid belt orbiting between Mars and Jupiter – could be made entirely of metal, according to a study.

    Even more intriguing, the asteroid's metal is worth an estimated $10,000 quadrillion (that's 15 more zeroes), more than the entire economy of Earth.

    [​IMG]
    Radio bursts were detected from within our Milky Way for first time
    For the first time, astronomers in November discovered a "fast radio burst" that came from within our own Milky Way galaxy.

    They also believe they have found a source of one of the bursts, which are extremely bright flashes of energy that last for a fraction of a second, during which they can blast out more than 100 million times more power than our sun.

    It appears the radio pulses were produced by a magnetar – a type of neutron star with a hugely powerful magnetic field.

    [​IMG]
    A 50-year-old science problem was solved
    And in December, we learned about the arcane field of "protein folding." A new discovery about the field could unlock a world of possibilities into the understanding of everything from diseases to drugs, researchers say. The breakthrough sent ripples of excitement through the science and medical communities because it deals with the shapes tiny proteins in our bodies – essential to all life – fold into.

    The "protein-folding problem" has puzzled scientists for five decades, and the discovery from the London-based artificial intelligence lab DeepMind was heralded as a major milestone.

    "This computational work represents a stunning advance on the protein-folding problem, a 50-year old grand challenge in biology," said Venki Ramakrishnan, president of the U.K.'s Royal Society.

    [​IMG]
    We learned mass extinctions of Earth's land animals follow a cycle
    Also in December, we found out that mass extinctions of life on Earth appear to follow a regular pattern, according to a study. In fact, widespread die-offs of land-dwelling animals – which include amphibians, reptiles, mammals and birds – follow a cycle of about 27 million years, the study reports. The study also said these mass extinctions coincide with major asteroid impacts and devastating volcanic outpourings of lava.

    "The global mass extinctions were apparently caused by the largest cataclysmic impacts and massive volcanism, perhaps sometimes working in concert," said study lead author Michael Rampino of New York University.
     
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  9. VadersLaMent

    VadersLaMent Chosen One star 10

    Registered:
    Apr 3, 2002
    I didn't know there was a protein folding problem until it was announced they solved it.
     
  10. VadersLaMent

    VadersLaMent Chosen One star 10

    Registered:
    Apr 3, 2002
    I forgot this was here. It was shot down Here

    The other notable result is that biomarkers of cellular senescence also saw a ~35% fall in the same T cell population. Again, the problem with interpreting these results as rejuvenation or age reversal is that T cells are a poor choice of cell type to use for this kind of thing due to their highly dynamic nature. Unfortunately, they are a popular cell type to use in these sorts of studies, due to the ease of collection from the bloodstream.

    These particular immune cells can have large variance in their telomere length based on the demand for cellular replication at that particular time. T cell populations replicate rapidly in the face of pathogens, and with each replication, the telomeres shorten, meaning that telomere lengths can vary in these cell populations from day to day. Infection and other environmental factors can play a key role in the status of T cell telomeres, and this is why they are not overly useful as aging biomarkers.

    --------

    But I wanted to post This today

    There were many building blocks to choose from mathematically, but we sought one that had the features of both the particle and wave – concentrated like the particle but also spread out over space and time like the wave. The answer was a building block that looks like a concentration of energy – kind of like a star – having energy that is highest at the center and that gets smaller farther away from the center.

    For the precession-of-Mercury problem, we modeled the Sun as an enormous stationary fragment of energy and Mercury as a smaller but still enormous slow-moving fragment of energy. For the bending-of-light problem, the Sun was modeled the same way, but the photon was modeled as a minuscule fragment of energy moving at the speed of light. In both problems, we calculated the trajectories of the moving fragments and got the same answers as those predicted by the theory of general relativity. We were stunned.

    Our initial work demonstrated how a new building block is capable of accurately modeling bodies from the enormous to the minuscule. Where particles and waves break down, the fragment of energy building block held strong. The fragment could be a single potentially universal building block from which to model reality mathematically – and update the way people think about the building blocks of the universe.
     
  11. Ramza

    Ramza Administrator Emeritus star 8 VIP - Former Mod/RSA VIP

    Registered:
    Jul 13, 2008
    "It sure would be cool if this led to purely discretized techniques being used for high-end physics applications, in my unbiased opinion," he said, hastily hiding his giant "Discrete Math is the Only Math Worth Caring About" poster and the copies of his autobiography, Never Met a Continuous Function I Liked: A Story of Hope.
     
    Last edited: Jan 3, 2021
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  12. blackmyron

    blackmyron Chosen One star 6

    Registered:
    Oct 29, 2005
    ... as much as I would like to see something new here (and I'm about 15 years removed from the subject), I'm going to have to go with 'extreme skepticism' here.

    Here's a link to the actual paper itself, for those inclined.
     
  13. Ramza

    Ramza Administrator Emeritus star 8 VIP - Former Mod/RSA VIP

    Registered:
    Jul 13, 2008
    Oh it's in PE? Extreme skepticism might be generous. :p

    Edit: Equational reference citations to Wikipedia, you love to see it.

    Unless they're spamming the list serve with claims they've solved the P vs NP problem. Then it's not as funny.

    Edit 2: There sure is a lot of restating super basic mathematical axioms (i.e. "this is what a vector is") in a way that smacks more of drowning the reader in equations than providing any substantive results (this is a common tactic in so-called "crank papers," amateur efforts that are enthusiastic but don't prove anything useful). The issue recurs throughout so I'm skeptical if there's much of anything worth engaging with, the meat of which seems to hinge almost entirely on that Mercury recursion despite how much chaff is in this thing. Big suspiciously intoned "if" there's anything good in here, they'd do well to bring in an author from the actual field and work with a journal that would actually edit.
     
    Last edited: Jan 3, 2021
  14. Rylo Ken

    Rylo Ken Force Ghost star 6

    Registered:
    Dec 19, 2015
    The Oumuamua saga continues!

    https://www.hmhbooks.com/shop/books/Extraterrestrial/9780358274551

    "Harvard’s top astronomer lays out his controversial theory that our solar system was recently visited by advanced alien technology from a distant star."

    Have we been probed? People have said we're due for a good probing. What people? Top. Top people.
     
  15. Chancellor_Ewok

    Chancellor_Ewok Chosen One star 7

    Registered:
    Nov 8, 2004
  16. Lowbacca_1977

    Lowbacca_1977 Jedi Grand Master star 6

    Registered:
    Jun 28, 2006
    Oh jeez, Avi Loeb at it again