Berkeley CSUA MOTD:Entry 44165
Berkeley CSUA MOTD
 
WIKI | FAQ | Tech FAQ
http://csua.com/feed/
2022/05/27 [General] UID:1000 Activity:popular
5/27    

2006/8/27-29 [Politics/Foreign/Asia/China, Computer/Theory] UID:44165 Activity:nil 80%like:44172
8/27    hey math fans read this:
        http://www.newyorker.com/fact/content/articles/060828fa_fact2
        \_ Thanks! great article.  -math fan
2022/05/27 [General] UID:1000 Activity:popular
5/27    

You may also be interested in these entries...
2014/1/2-2/5 [Politics/Foreign/Asia/China, Politics/Foreign/MiddleEast/Iraq] UID:54761 Activity:nil
1/2     "What would a U.S.-China war look like?"
        http://www.csua.org/u/122i (theweek.com)
	...
2014/1/7-2/5 [Politics/Foreign/Asia/China, Reference/Religion] UID:54762 Activity:nil
1/7     Are you from a family of Mormons, Cuban exiles, Nigerian Americans,
        Indian Americans, Chinese Americans, American Jews, Iranian Americans
        or Lebanese Americans?
        http://www.csua.org/u/123d (shine.yahoo.com)
        \_ Somehow she misssed WASP Episcopalians.
	...
2013/3/13-5/10 [Politics/Foreign/Asia/China] UID:54625 Activity:nil
3/13    "China's Drone Swarms Rise to Challenge US Power"
        http://www.csua.org/u/zgz (news.yahoo.com)
        Before our drones dominate the sky, we are already losing dominance.
	...
2013/3/28-5/10 [Politics/Foreign/Asia/China, Computer/Rants] UID:54641 Activity:nil
3/28    "Horrifying Video From China Shows Just How Suddenly A Sinkhole Can
        Appear"  http://www.csua.org/u/znh (http://www.businessinsider.com
	...
2013/2/5-3/4 [Politics/Domestic/Immigration] UID:54598 Activity:nil
2/5     http://www.csua.org/u/z5u (news.yahoo.com)
        "I hope no one uses the term 'illegal immigrants' here today," said
        Committee Ranking Member John Conyers of Michigan. "Our citizens are
        not illeg -- the people in this country are not illegal. They are out
        of status."
        How did this guy get himself on the House Judiciary Committee?  Is it
	...
2012/12/5-18 [Politics/Domestic/Election] UID:54548 Activity:nil
12/5    Romney is right after all -- our military does need more horses and
        bayonets!  http://www.csua.org/u/y3j  Romney for 2012!
        \_ I'd never considered Romney's campaign as an ad for Revolution,
           but I guess that makes as much sense anything else.
        \_ The tax cut removal is ill timed.
        \_ holy crap. This is scary. US troops are most vulnerable as it is
	...
2012/7/25-10/17 [Politics/Foreign/Asia/Japan, Reference/History/WW2/Japan] UID:54444 Activity:nil
7/25    http://www.quora.com/Japan/What-facts-about-Japan-do-foreigners-not-believe-until-they-come-to-Japan
        Japan rules!
        \_ Fifteen years ago I worked there for seven months.  I miss Japan!
           (I'm Chinese immigrant.)  More facts:
           - Besides cold drinks, vending machines also carry hot drinks like
             hot tea and corn soup.  And they are actually hot instead of warm.
	...
2012/3/2-26 [Politics/Foreign/Asia/China] UID:54325 Activity:nil
3/2     I just came back from Asia and I'm completely convinced that
        it is where economic boom will really happen in the next decade.
        What's a good web site to learn Chinese?
	...
2011/12/2-2012/2/6 [Politics/Foreign/Asia/China] UID:54247 Activity:nil
12/2    "Students Uncover China Nuke Tunnels"
        http://www.csua.org/u/uv7 (news.yahoo.com)
        ~3000 miles of tunnel network.
        \_ WaPo article on same:
           http://csua.org/u/uwn
	...
2011/12/20-2012/2/6 [Politics/Foreign/Asia/China, Computer/Rants] UID:54268 Activity:nil
12/20   A higher percentage of people in China than in Pakintan have an
        unfavorable view of China:
        http://www.pewglobal.org/database/?indicator=24&response=Unfavorable
        Go figure.
        \_ damn these self critical liberals!
	...
2011/4/26-7/13 [Computer/Theory, Health/Women] UID:54095 Activity:nil
4/26    Is it correct to say that Godel's work on the incompleteness thm
        proved the Principia Mathematica wrong?
        \_ It didn't exactly prove it wrong; it proved that the true goal of
           PM (a complete and consistent set of mathematical truths)
           is unattainable.  -tom
           \_ Ah cool, no this is good. See ok yeah so the main goal of PM
	...
2010/3/7-30 [Computer/SW/Languages] UID:53743 Activity:nil
3/7     My sister is graduating soon with a decree in information management.
        She was orignally CS, but couldn't cut the math, so her GPA sucks.
        However, she has had a couple of internships and did fine.  She did
        desktop support at RockYou and is currently doing web programming
        at UC Santa Cruz, but they can't keep her on after graduation.
        Anyone got any jobs?  She wanted to be a network admin, but right now
	...
2009/9/18-29 [Computer/Theory] UID:53378 Activity:nil
9/18    I forgot my math.  Say the probability of a bug happening is the
        unknown fixed value p in [0,1].  I attempt to reproduce the
        bug until it happens once.  Then it happens at my n-th trial, so I
        stop.  Now, what is the expected value of p?  Is it E(p) = 1/n?  Thx.
        \_ Did a quick program to test.  Looks like E(p) = 1/n
           (given assumption n(p) = sum x = 1 to inf of x*(1-p)^(x-1)*p
	...
Cache (8192 bytes)
www.newyorker.com/fact/content/articles/060828fa_fact2
MANIFOLD DESTINY A legendary problem and the battle over who solved it. by SYLVIA NASAR AND DAVID GRUBER Issue of 2006-08-28 Posted 2006-08-21 On the evening of June 20th, several hundred physicists, including a Nobel laureate, assembled in an auditorium at the Friendship Hotel in Beijing for a lecture by the Chinese mathematician Shing-Tung Yau. In the late nineteen-seventies, when Yau was in his twenties, he had made a series of breakthroughs that helped launch the string-theory revolution in physics and earned him, in addition to a Fields Medal--the most coveted award in mathematics--a reputation in both disciplines as a thinker of unrivalled technical power. Yau had since become a professor of mathematics at Harvard and the director of mathematics institutes in Beijing and Hong Kong, dividing his time between the United States and China. His lecture at the Friendship Hotel was part of an international conference on string theory, which he had organized with the support of the Chinese government, in part to promote the country's recent advances in theoretical physics. Yau, a stocky man of fifty-seven, stood at a lectern in shirtsleeves and black-rimmed glasses and, with his hands in his pockets, described how two of his students, Xi-Ping Zhu and Huai-Dong Cao, had completed a proof of the Poincar conjecture a few weeks earlier. "Chinese mathematicians should have every reason to be proud of such a big success in completely solving the puzzle." He said that Zhu and Cao were indebted to his longtime American collaborator Richard Hamilton, who deserved most of the credit for solving the Poincar. He also mentioned Grigory Perelman, a Russian mathematician who, he acknowledged, had made an important contribution. Nevertheless, Yau said, "in Perelman's work, spectacular as it is, many key ideas of the proofs are sketched or outlined, and complete details are often missing." He added, "We would like to get Perelman to make comments. Petersburg and refuses to communicate with other people." For ninety minutes, Yau discussed some of the technical details of his students' proof. That night, however, a Brazilian physicist posted a report of the lecture on his blog. "Looks like China soon will take the lead also in mathematics," he wrote. He left his job as a researcher at the Steklov Institute of Mathematics, in St. and he lives with his mother in an apartment on the outskirts of the city. Although he had never granted an interview before, he was cordial and frank when we visited him, in late June, shortly after Yau's conference in Beijing, taking us on a long walking tour of the city. "I'm looking for some friends, and they don't have to be mathematicians," he said. The week before the conference, Perelman had spent hours discussing the Poincar conjecture with Sir John M Ball, the fifty-eight-year-old president of the International Mathematical Union, the discipline's influential professional association. The meeting, which took place at a conference center in a stately mansion overlooking the Neva River, was highly unusual. At the end of May, a committee of nine prominent mathematicians had voted to award Perelman a Fields Medal for his work on the Poincar, and Ball had gone to St. The Fields Medal, like the Nobel Prize, grew, in part, out of a desire to elevate science above national animosities. U congress, in 1924, and, though the ban was lifted before the next one, the trauma it caused led, in 1936, to the establishment of the Fields, a prize intended to be "as purely international and impersonal as possible." However, the Fields Medal, which is awarded every four years, to between two and four mathematicians, is supposed not only to reward past achievements but also to stimulate future research; for this reason, it is given only to mathematicians aged forty and younger. In recent decades, as the number of professional mathematicians has grown, the Fields Medal has become increasingly prestigious. Only forty-four medals have been awarded in nearly seventy years--including three for work closely related to the Poincar conjecture--and no mathematician has ever refused the prize. Nevertheless, Perelman told Ball that he had no intention of accepting it. Over a period of eight months, beginning in November, 2002, Perelman posted a proof of the Poincar on the Internet in three installments. Like a sonnet or an aria, a mathematical proof has a distinct form and set of conventions. It begins with axioms, or accepted truths, and employs a series of logical statements to arrive at a conclusion. If the logic is deemed to be watertight, then the result is a theorem. Unlike proof in law or science, which is based on evidence and therefore subject to qualification and revision, a proof of a theorem is definitive. Judgments about the accuracy of a proof are mediated by peer-reviewed journals; to insure fairness, reviewers are supposed to be carefully chosen by journal editors, and the identity of a scholar whose pa-per is under consideration is kept secret. Publication implies that a proof is complete, correct, and original. It was astonishingly brief for such an ambitious piece of work; logic sequences that could have been elaborated over many pages were often severely compressed. Moreover, the proof made no direct mention of the Poincar and included many elegant results that were irrelevant to the central argument. But, four years later, at least two teams of experts had vetted the proof and had found no significant gaps or errors in it. A consensus was emerging in the math community: Perelman had solved the Poincar. Even so, the proof's complexity--and Perelman's use of shorthand in making some of his most important claims--made it vulnerable to challenge. Few mathematicians had the expertise necessary to evaluate and defend it. After giving a series of lectures on the proof in the United States in 2003, Perelman returned to St. Since then, although he had continued to answer queries about it by e-mail, he had had minimal contact with colleagues and, for reasons no one understood, had not tried to publish it. Still, there was little doubt that Perelman, who turned forty on June 13th, deserved a Fields Medal. U's 2006 congress, he began to conceive of it as a historic event. More than three thousand mathematicians would be attending, and King Juan Carlos of Spain had agreed to preside over the awards ceremony. U's newsletter predicted that the congress would be remembered as "the occasion when this conjecture became a theorem." Ball, determined to make sure that Perelman would be there, decided to go to St. Ball wanted to keep his visit a secret--the names of Fields Medal recipients are announced officially at the awards ceremony--and the conference center where he met with Perelman was deserted. For ten hours over two days, he tried to persuade Perelman to agree to accept the prize. Perelman, a slender, balding man with a curly beard, bushy eyebrows, and blue-green eyes, listened politely. He had not spoken English for three years, but he fluently parried Ball's entreaties, at one point taking Ball on a long walk--one of Perelman's favorite activities. As he summed up the conversation two weeks later: "He proposed to me three alternatives: accept and come; accept and don't come, and we will send you the medal later; From the very beginning, I told him I have chosen the third one." The Fields Medal held no interest for him, Perelman explained. "Everybody understood that if the proof is correct then no other recognition is needed." Proofs of the Poincar have been announced nearly every year since the conjecture was formulated, by Henri Poincar, more than a hundred years ago. Poincar was a cousin of Raymond Poincar, the President of France during the First World War, and one of the most creative mathematicians of the nineteenth century. Slight, myopic, and notoriously absent-minded, he conceived his famous problem in 1904, eight years before he died, and tucked it as an offhand question into the end of a sixty-five-page paper. Poincar didn't make much progress on proving the conjecture. "Cette question nous entranerait trop loin" ("This question wou...