Tag Archives 爱上海北京同城论坛发帖

Solving the Paschall riddle: Defenses suddenly need to account for Warriors rookie

first_imgHOUSTON — By the end of his historic night, Eric Paschall was hearing chants of “M-V-P” from the fans at Chase Center. While that shiny award might be a stretch, the rookie’s recent scoring outburst has made him one of the most important players in the Warriors’ offense.His stat line in Golden State’s win against the Trail Blazers on Monday (34 points on 11-of-19 shooting and 13 rebounds) stack up to former Warriors Kevin Durant and Chris Webber. With numbers like that, it’s safe to say …last_img read more

Earth Uniqueness Up; SETI Down

first_imgOur earth seems special – maybe because it is.  Some astronomers are seriously considering that life might be rare or unique on our rare (or unique) planet.  If so, hopes for finding sentient aliens on the celestial radio dial drop accordingly.  The 50th anniversary of the first SETI search came, unfortunately for search enthusiasts, at a time when funding is harder to get. New Scientist has been running a series called “Existence” for the purpose of examining big questions about the origin of the universe, life, and consciousness.  Most of the articles try to give atheist answers to arguments of intelligent design.  In “Why is the universe just right for us?” for instance, Marcus Chown tried to explain away fine-tuning arguments with responses that physical constants might be interconnected, or are not as finely tuned as they seem, or that the multiverse hypothesis provides a way out.  Even so, he could not explain away the incredibly “fortuitous” dark energy parameter. In “Where did we come from?” Stephen Hawking presented the standard big bang scenario with inflation, but admitted at the end that “many huge mysteries remain,” leaving the solution in the future.  In “Why is there a universe?” Amanda Gefter tried to explain how something can come from nothing via quantum fluctuations.  MacGregor Campbell posted a cartoony animation trying to convince puzzled readers that “nothing” and “something” might be one and the same – i.e., that our physical universe, including us, might really be nothing.  At the end, though, Gefter realized this is not a satisfactory answer: None of this really gets us off the hook, however. Our understanding of creation relies on the validity of the laws of physics, particularly quantum uncertainty. But that implies that the laws of physics were somehow encoded into the fabric of our universe before it existed. How can physical laws exist outside of space and time and without a cause of their own? Or, to put it another way, why is there something rather than nothing? Readers of these articles might well ask how nothing could know anything. Live Science put forth a new idea by David Spiegel [Princeton U] and Edwin Turner [U of Tokyo] that allows for sentient life being so rare that we might be alone in the universe.  Using Bayesian analysis, they showed mathematically that there is no way to prefer the belief life is common over the belief life is rare, even using the famous Drake equation.  When you have only one data point, “Our own existence implies very little about how many other times life has arisen.”  Accordingly, it is just as scientifically reasonable to believe life is unique in the universe as to argue it must be common. In a Nature News article, M. Mitchell Waldrop announced royally, “SETI Is dead – Long live SETI.”  By that he meant that “The closure of the Allen Telescope Array shifts the search for extraterrestrial intelligence away from big science.”  California’s budget crisis has shut down hopes at the Hat Creek site to scan the skies for intelligent signals.  With that comes the graying of the true believers: The melancholy vista at Hat Creek makes it easy to entertain equally melancholy thoughts about the SETI enterprise itself. It’s the ultimate in high-risk, high-payoff science, pursued by only a handful of passionate researchers. In 50 years of searching, they have turned up nothing — and they can’t quite shake an association in the public mind with flying-saucer sightings and Hollywood science fiction, all of which is so easy for cost-cutting politicians to ridicule that any substantial federal funding for SETI is impossible. Private support for the search is getting tighter because of the global recession. And many of the pioneers who have championed the search are now well into their 60s, 70s or 80s. SETI Institute research head Jill Tarter remains optimistic, however, because smaller, cheaper searches are still continuing, and all searches over the past half century have only represented a tiny sample of space.  Bottom line, though, is that nothing has been found, and even the most optimistic proponents cannot provide any reasonable estimate of the chances of success, despite the self-reinforcing opinions of those whose reputations depend on high hopes (Space.com). It really is kind of sad to see weeds grow around the Allen Telescope Array, built, like one of the designers said, “in a time of irrational exuberance, [that] ended in the great recession.”  For one thing, it is sad to see any money wasted.  For another, it kept the SETI people busy on a project unlikely to succeed instead of employed in possibly more damaging work (like Darwin Party Enforcers).  And lastly, the SETI hype gave us a lot of material for Stupid Evolution Quotes of the Week.  SETI is dead; SET your I on ID.(Visited 46 times, 1 visits today)FacebookTwitterPinterestSave分享0last_img read more

162 medical teams to tackle diseases after deluge in Maharashtra

first_imgFollowing the floods across the State due to heavy rainfall over the past week, the government fears a surge in cases of leptospirosis, dengue, malaria, and viral fevers. The health department has formed 162 medical teams to conduct house-to-house visits for early symptom diagnosis and treatment.Of these, 114 teams are working in the Thane region, 37 in Kolhapur and 10 in Pune.A health department official said a four-member team of two male and female medical worker each would visit bigger areas and villages, while the smaller villages would be covered by two-member teams.A press release issued on Tuesday by Health Minister Eknath Shinde said nearly 1.14 lakh people have been affected by the floods and heavy rainfall across the State. As many as 36 villages in the Kolhapur region, 18 in Thane and two to three villages in Satara and Nashik have been severely affected.“So far, the teams have covered more than 14,000 households. In the flood-affected areas, we have also undertaken work for cleaning water in the wells,” Mr. Shinde said.Fear of outbreakFor those who have waded through floodwater, leptospirosis is the biggest risk. It is a bacterial infection that is transmitted to humans through rat and cattle urine and excreta and commonly caused when one wades through contaminated water and the bacteria is transmitted through unhealed wounds in the skin, abrasions, and cuts especially on the foot. Mumbai has recorded 62 cases, and one death, due to leptospirosis in July this year.As the floodwaters recede, a surge in vector-borne disease is also most likely as mosquito breeding sees a rise. “Konkan, Navi Mumbai, and Thane region have recorded very high rainfall. The civic administration should be prompt in vector control measures. Those who have waded through water should get easy access to prophylactic medication as well,” Mr. Shinde said.last_img read more