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A***e
发帖数: 130 | 2 http://nautil.us/blog/the-present-phase-of-stagnation-in-the-foundations-of-physics-is-not-normal
Nothing is moving in the foundations of physics. One experiment after the
other is returning null results: No new particles, no new dimensions, no new
symmetries. Sure, there are some anomalies in the data here and there, and
maybe one of them will turn out to be real news. But experimentalists are
just poking in the dark. They have no clue where new physics may be to find.
And their colleagues in t... 阅读全帖 |
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m**********e
发帖数: 12525 | 3 一帮傻屄,上窜下跳,
妈的
这题目,本质上就是Goldbach conjecture
阴文不灵的蚂农,本爷告诉你啊,
母语叫哥德巴赫猜想 |
|
发帖数: 1 | 4 不错，虽然跟哥德巴赫不等价，但是是一种类型的问题。
但我题目里说了，马工们可以想想怎么编程找反例，什么算法最优。
: 一帮傻屄,上窜下跳,
: 妈的
: 这题目,本质上就是Goldbach conjecture
: 阴文不灵的蚂农,本爷告诉你啊,
: 母语叫哥德巴赫猜想
|
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m**********e
发帖数: 12525 | 5 我都说了
这题其实就是goldbach conjecture变形
妈的一帮人上窜下跳还是看不出来 |
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T*******x
发帖数: 8565 | 6 我又仔细wiki了一下。你这个说的可能不对：
Vinogradov 1937年并没有证明奇数哥德巴赫猜想。他只是研究了这个猜想，得到了一
些上限。并没有证明。
Harald Helfgott 2013年发表了奇数哥德巴赫猜想的证明，基本被认可。
In 2013, Harald Helfgott released two papers claiming to be a proof of
Goldbach's weak conjecture; the claim is now broadly accepted.[11] The
problem had a history of over 250 years without a full proof. |
|
发帖数: 1 | 7 和真实世界的黑洞有所不同
https://www.quantamagazine.org/the-double-life-of-black-holes-20190129/
String theorists moreover like to study black holes in universes with a
negative cosmological constant (the so-called Anti-de Sitter spaces). Our
actual universe has a positive cosmological constant. But if the
cosmological constant is negative, black hole horizons can be infinitely
extended planes. In addition to higher dimensions and a negative
cosmological constant, theoreticians also prefer black holes that ... 阅读全帖 |
|
发帖数: 1 | 8 据说难倒一大票人
被一个叫hao huang的中国人解决了 |
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n********g
发帖数: 6504 | 11 你能解释sensitivity conjecture不？ |
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发帖数: 1 | 13 2020 Breakthrough Prize in Fundamental Physics
The Event Horizon Telescope Collaboration
Collaboration Director Shep Doeleman of the Harvard-Smithsonian Center for
Astrophysics will accept on behalf the collaboration. The $3 million prize
will be shared equally with 347 scientists co-authoring any of the six
papers published by the EHT on April 10, 2019.
Citation: For the first image of a supermassive black hole, taken by means
of an Earth-sized alliance of telescopes.
2020 Breakthrough Prize in... 阅读全帖 |
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发帖数: 1 | 15 First need evidence, so far only baseless conjectures.
doctors |
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a***k
发帖数: 1038 | 16 新冠状病毒和2018 SID: AVP78033.1 的一些序列完全相同，这是舟山群岛的蝙蝠，武
汉只有她的实验室有，就这个就足够抓捕审讯她了
: First need evidence, so far only baseless conjectures.
: doctors
|
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S*******l
发帖数: 4637 | 17 RaTG13和2019nCov在进化上分开至少25了。
跟据突变率估计，两者从共同祖先分开25-65年了。
每次出现新病毒性疾病，这种研究机构人造病毒泄露/或保存的天然病毒泄露的阴谋论
就会出现。
没什么新鲜的。
https://www.sciencemag.org/news/2020/01/mining-coronavirus-genomes-clues-
outbreak-s-origins
Mining coronavirus genomes for clues to the outbreak’s origins
By Jon CohenJan. 31, 2020 , 6:20 PM
Earlier this week, Ebright questioned the accuracy of Bedford’s calculation
that there are at least 25 years of evolutionary distance between RaTG13—
the virus held in the Wuhan virology institute—and ... 阅读全帖 |
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w******n
发帖数: 13172 | 18 貌似几乎所有的跟帖都认可tg可以实现，都在讨论如何从政治上反制或用激光自卫。
http://www.usni.org/news-and-features/chinese-kill-weapon
Report: Chinese Develop Special "Kill Weapon" to Destroy U.S. Aircraft
Carriers
Advanced missile poses substantial new threat for U.S. Navy
U. S. Naval Institute
March 31, 2009
With tensions already rising due to the Chinese navy becoming more
aggressive in asserting its territorial claims in the South China Sea, the U
.S. Navy seems to have yet another reason to be deeply concerned.
After years of c... 阅读全帖 |
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t*s
发帖数: 1504 | 19 我没有证据，但我并没有present my conjecture as a fact
you did, so you have the burden of proof |
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U*E
发帖数: 3620 | 20 【 以下文字转载自 Joke 讨论区 】
发信人: ncatlab (弃疾), 信区: Joke
标 题: Subway Interview来啦
发信站: BBS 未名空间站 (Wed May 22 21:21:47 2013, 美东)
发信人: UKuser (None), 信区: Mathematics
标 题: Subway Interview来啦
发信站: BBS 未名空间站 (Wed May 22 21:20:10 2013, 美东)
Dear UKuser,
As a result of your application for the position of Sales Assistant, I would
like to invite you to attend an interview on May 30, at 9 AM at our office
in Durham, NH.
You will have an interview with the department manager, Eat Fresh. The
interview will last abou... 阅读全帖 |
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l****z
发帖数: 29846 | 21 Krauthammer轰奥巴马：什么样的指挥官会把数以万计的部队派到战场，同时宣布一个
固定的时间撤
兵？一个根本不想打赢的人只是在被迫作出政治姿态
Why Is He Sending Them?
President Obama lacks the will to fight in Afghanistan.
From the beginning, the call to arms was highly uncertain. On Dec. 1, 2009,
commander-in-chief Barack Obama orders 30,000 more Americans into battle in
Afghanistan. But in the very next sentence, he announces that an American
withdrawal will begin after 18 months.
Astonishing. A surge of troops — overall, Obama has tripled our Afghan
force
— w... 阅读全帖 |
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l****z
发帖数: 29846 | 22 加州大学物理学家Hal Lewis退出美国物理学会，“人造全球暖化骗局，用以十亿计的
美元，俘虏了那么多科学家”
http://thegwpf.org/ipcc-news/1670-hal-lewis-my-resignation-from-the-american-physical-society.html
Hal Lewis: My Resignation From The American Physical Society
Friday, 08 October 2010 17:19 Hal Lewis
E-mail Print PDF
From: Hal Lewis, University of California, Santa Barbara
To: Curtis G. Callan, Jr., Princeton University, President of the American
Physical Society
6 October 2010
Dear Curt:
When I first joined the American Physical Society s... 阅读全帖 |
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l****z
发帖数: 29846 | 23 参议院民主党领袖、极左的Harry Reid，现在是最富有的参议员之一，住在首府华盛顿
的超豪华的Ritz公寓中。他的财富从哪里来？
http://www.dirtymoneyharry.com/reidmoney.html
Where Reid's Money Came From
By Daxton Brown
d*********[email protected]
In the Sharron Angle vs Reid debate on October 14th, Angle asked Senator
Reid how he was able to accumulate so much wealth on a politicians salary.
One would suppose that Senate Majority Leader Harry Reid is a fairly
important person and many in the media would already have answers to this
question. However, other than... 阅读全帖 |
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d***h
发帖数: 97 | 24 Billions in Hidden Riches for Family of Chinese Leader
http://www.nytimes.com/2012/10/26/business/global/family-of-wen
BEIJING — The mother of China’s prime minister was a schoolteacher in
northern China. His father was ordered to tend pigs in one of Mao’s
political campaigns. And during childhood, “my family was extremely poor,”
the prime minister, Wen Jiabao, said in a speech last year.
But now 90, the prime minister’s mother, Yang Zhiyun, not only left
poverty behind — she became outright ric... 阅读全帖 |
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g***y
发帖数: 1268 | 25 一个国家崛起靠剥削和掠夺？ 你马列学多了吧，什么都是zero-sum game.
美国崛起，印第安人除了土地，没有贡献。黑人贡献在早期的种植园，但是种植园经济
在美国崛起之前就被淘汰了。
美国的崛起靠的是自由资本主义，资本和数千万（如果不是上亿）移民human resource
的结合。剥削和掠夺是无法把如此多身无分文的移民转变成中产阶级。如果WASP只接受
WASP移民，就没有美国崛起。
种族主义下的国家兴起最著名的就是第三帝国。结局如何？
我conjecture国家和种族无法靠种族主义兴起且不迅速衰落。如果你不同意，可以找出
反例来看看。
落” |
|
P*****g
发帖数: 457 | 26 You have a fundamental misunderstanding of the meaning of the word "theory"
as used in science. Please educate yourself before you discuss science.
Theory is not the same as hypothesis or conjecture. The only fact in science
are observations, which is what global warming is.
.
fact. |
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t********r
发帖数: 492 | 27 So global cooling theory is contradicted fact of global warming. Do u even
know what is earth shine? Educate urself first. After all, you believe
yourself, not care about condtradicted theory in science.
Btw,Agree that a lot of theories are fact. But theory is not fact.
ask your prof - is string theory a still assumption or fact. You can
google
too.
: You have a fundamental misunderstanding of the meaning of the
word "
theory"
: as used in science. Please educate yourself before you d... 阅读全帖 |
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d*********2
发帖数: 48111 | 28 global cooling喊了40年， global warming才喊了多少年。
地球是2000年才开始工业革命的？
https://en.wikipedia.org/wiki/Global_cooling
20世纪70年代初，一些科学家们从地球运转轨道周期变化规律出发，提出了盛行一时的
“气候变冷”说，认为21世纪地球将进入“小冰河期”。1974年，一批欧美的著名学者
在美国布朗大学举办了一个专门研讨会，学者在会上举例证明地球气温已开始下降，表
示距15世纪最近一次地球“小冰河期”已有约500年，如果人类不加以干涉，当前的暖
期将会较快结束，全球变冷以及相应的环境变迁就会随之来临。忧心忡忡的两位会议发
起者甚至向当时的美国总统尼克松写信发出“小冰河期”临近的警报。
Global cooling was a conjecture during the 1970s of imminent cooling of the
Earth's surface and atmosphere culminating in a period of extensive
glaciation. This... 阅读全帖 |
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S*******h
发帖数: 7021 | 29 看起来很嫩，怎么看都不像奸恶之徒，更别说收俄罗斯钱卖国了
July 24, 2017
I am voluntarily providing this statement, submitting documents, and sitting
for interviews in order to shed light on issues that have been raised about
my role in the Trump for President Campaign and during the transition
period.
I am not a person who has sought the spotlight. First in my business and now
in public service, I have worked on achieving goals, and have left it to
others to work on media and public perception. Because there has been a
grea... 阅读全帖 |
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c******c
发帖数: 418 | 30 so what？中国人在漫长的中世纪，英国人在17，18世纪，法国人在18，19世纪对世界
文明的贡献比犹太人只高不低。犹太人之所以能有这么多的奖，和他们报成团，互相提
拔有很大关系。为什么杨振宁在 Institute for Advanced Study 呆不下去？是因为犹
太董事的打压。Perelman 解决 Poincaré conjecture 犹太为什么这么高兴？是因为
这么多年犹太人终于第一次可以在微分几何领域击败华人丘成桐。Shia LaBeouf 演技
这么烂，为啥可以一再出演 Transformers 等大片？是因为 Spielberg 这个犹太老乡
就喜欢用他。
近代世界文明只是漫漫历史长河的一瞬间，谁高谁低，都只是暂时的，没有必要提高或
压低谁。大家都会有辉煌或低潮的时候。 |
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i****x
发帖数: 17565 | 31 冯诺依满的贡献早就不能用钱衡量了 别的不说，没他对eniac的工作，程序员这个职业
就不会存在。gates要是知道你把他俩比，估计都要被折杀了。
wiki上列了他的主要贡献领域，给你参考下
Abelian von Neumann algebra
Affiliated operator
Amenable group
Arithmetic logic unit
Artificial viscosity
Axiom of regularity
Axiom of limitation of size
Backward induction
Blast wave (fluid dynamics)
Bounded set (topological vector space)
Class (set theory)
Decoherence theory
Computer virus
Commutation theorem
Continuous geometry
Direct integral
Doubly stochastic matrix
Duality Theorem
Density matrix
... 阅读全帖 |
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D******g
发帖数: 125 | 32 。。。。自己去看看张在数学界引起的轰动， 这个结果不亚于poincare conjecture,
fermat's last theorem. 其在数学中的地位真的可以用gauss的皇冠上的明珠来形容
。 7千万和2 是有区别， 但对数学家来说， 无穷到7千万的progress才是本质的。
nash, perelman， wiles诸君俱往矣！ 老张的结果看yau的兴奋样就知道牛鼻程度了， |
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c******a
发帖数: 4400 | 33 Dean told him that you own brilliant opinions, Its not pretend conjecture. |
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M****o
发帖数: 4860 | 34 【 以下文字转载自 Mathematics 讨论区 】
发信人: guinea (猪猪), 信区: Mathematics
标 题: 田刚抄袭最新证据（唐纳尔森教授撰文）
发信站: BBS 未名空间站 (Wed Nov 20 21:06:17 2013, 美东)
全文见
Xiuxiong Chen, Simon Donaldson, Song Sun
September 19, 2013
http://www2.imperial.ac.uk/~skdona/KEDEVELOPMENTS-9-19-2013.PDF
部分摘录
Gang Tian has made claims to credit for these results. The purpose of this
document is to rebut these claims on the grounds of originality, priority
and correctness of the mathematical arguments. We acknowledge Tian's many
contributio... 阅读全帖 |
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f*******7
发帖数: 1019 | 35 【 以下文字转载自 Military 讨论区 】
发信人: firefox77 (firefox), 信区: Military
标 题: 老张拿了MacArthur Award!!!
发信站: BBS 未名空间站 (Wed Sep 17 00:48:51 2014, 美东)
http://www.macfound.org/fellows/class/class-2014/
http://www.macfound.org/fellows/927/
Mathematician tackling truly hard questions in number theory leading to the
first finite bound on a gap between prime numbers and the best possible
qualitative approximation of the twin prime conjecture. |
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g****l
发帖数: 32 | 36 He apparently rubbed 'bosses' the wrong way to start with, by asking if he
could take 3 weeks vacation when he was first assigned
the TA. He probably should have laid low when he was warned that the prof is
not fond of him. But still... Below is a comment from the article:
Anonymous posted on Jun 24, 2:11pm
Full disclosure: I'm a PhD student and TA who cares a lot about teaching and
about my students. I have had the opportunity to teach for extraordinary
students and I've had supportive professo... 阅读全帖 |
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p**********n
发帖数: 1470 | 37 there is also the famous japanese mathematician Shinichi Mochizuki who was
famous for (attempting) a proof of the ABC conjecture.
He grew up in New York, but fell in deep love with the Japanese language and
culture. He once said the Japanese language helped him a lot in geometry,
and the mathematical style of Japanese mathematicians and the math papers
published in the Japanese language are great inspirations for his work. |
|
A****0
发帖数: 1367 | 38 买买提猜想： 张汤姆的h-index大于3
conjecture of maimaiti: Tom's h-index is greater than 3. |
|
p***n
发帖数: 17190 | 39 魚老師,魚前輩, 請 翻譯
所以這個球球是在高維空間中的三維球嗎?
771;
conjectured
lacks
if
be |
|
l*****n
发帖数: 328 | 40 现在世界上，国家之间, Chinese 就和假货，有毒食品，有毒玩具联系在一起。在学术
见，Chinese 教授就是和抄袭论文, plagiarism,联系在一起（那 Poincare
conjecture 事件），Chinese学生就是和考试作弊，成绩单作弊联系在一起(harvard,
mit每年招生处招了很多资料作假的Chinese学生）。
现在在职场里，Chinese就是interview作弊。
总体让人感觉，和Chinese合作让人非常没有安全感，很untrustworthy. |
|
g**********y
发帖数: 14569 | 41 0. if x<2 return -1;
1. buildSieveTable up to x
2. if x is odd, return x-2 is prime? 2 : -1
3. for ( i in sieveTable ) if x-i is in sieveTable return i (According to
Goldbach conjecture) |
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g****x
发帖数: 223 | 42 仅仅按时顺序举几个例：
N多年前，某万人级企业，group interview, 这个人问的比另外４个老美加在一起都多
，画龙点＇精＇的是在最后，老美问我的名字中文如何发音，并且提醒他也是中国人，
他却说＂I hate Chinese names because they are very ugly＂...
前年面魔跟死贪利，一个我至今仍然十分感激的人，他最后用中文跟我讲＂。。。你比
我见到的大多数面试人强多了，缺点就是说话没自信，太谦虚，。。。＂。我不认识他
，但永远记住了他。
某此版上面经最多的公司之一的research lab, 轮到我进他的办公室，我主动伸出手，他
却当着老美的面，扭头不跟我握，虽然我从来没碰见过他。整个面试，我只能看他的后
背，因为他只盯着机器屏幕。。。
某著名大投行的NLP位置，问到最后，突然间问我什么是RSA，能否快速讲一下如何在
RSA里使用小费马定理。我说完后，顺便提及＂Recently a genius Chinese
mathematician solved the famous weak twin prime conjecture and his... 阅读全帖 |
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w*********y
发帖数: 251 | 43 店面expedia，一接电话听到浓重的老印口音。心里咯噔一下。
第一个问题就是怎么写hash function. 我中规中矩的说用mod，blablabla. 结果被打
断，说我的hash function 不perfect，应该用SHA-1 我当时心里说，完了，没去看SHA
-1啊，谁想到去看这玩意。
然后第二个问题是关于， Collatz conjecture， 如果一个大数字开头，怎么prove或
disprove。 俺吭哧了半天。 无法，只能穷究了。 现在才知道这问题算法上
undecidable.觉得被耍了。
这里跟大家分享下。 唉，碰到老印自认倒霉吧. move on. move on. |
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r***c
发帖数: 95 | 44 谢谢回复。
If n is even, divide it by 2 to get n / 2.
If n is odd, multiply it by 3 and add 1 to obtain 3n + 1.
Repeat the process (which has been called "Half Or Triple Plus One", or
HOTPO[6]) indefinitely.
The conjecture is that no matter what number you start with, you will always
eventually reach 1.
这个和二楼说的情形，一样么？
嗯，想自己写，所以不想看别人的code，嘿嘿。 |
|
o****n
发帖数: 348 | 45 辐射有一定危害性(UV)，不过频段跟高压线差太远了。 另： 低色度导致致癌是从哪来
的？
跟这两个比，辐射最大的应该是手机。
From Wiki:
Human health
Main article: Fluorescent lamps and health
According to the European Commission Scientific Committee on Emerging and
Newly Identified Health Risks (SCENIHR) in 2008, CFLs may pose an added
health risk due to the ultraviolet and blue light emitted. This radiation
could aggravate symptoms in people who already suffer skin conditions that
make them exceptionally sensitive to light. The light produced by some
sing... 阅读全帖 |
|
a*****g
发帖数: 19398 | 46 长篇文章：Why Do Americans Stink at Math?
When Akihiko Takahashi was a junior in college in 1978, he was like most of
the other students at his university in suburban Tokyo. He had a vague sense
of wanting to accomplish something but no clue what that something should b
e. But that spring he met a man who would become his mentor, and this relati
onship set the course of his entire career.
Takeshi Matsuyama was an elementary-school teacher, but like a small number
of instructors in Japan, he taught no... 阅读全帖 |
|
a*****g
发帖数: 19398 | 47 长篇文章：Why Do Americans Stink at Math?
When Akihiko Takahashi was a junior in college in 1978, he was like most of
the other students at his university in suburban Tokyo. He had a vague sense
of wanting to accomplish something but no clue what that something should b
e. But that spring he met a man who would become his mentor, and this relati
onship set the course of his entire career.
Takeshi Matsuyama was an elementary-school teacher, but like a small number
of instructors in Japan, he taught no... 阅读全帖 |
|
u*****a
发帖数: 6276 | 48 雅虎评论：
The suit, however, is getting strong pushback from Asian American student
and civil rights organizations, who suspect that Students for Fair
Admissions—and its parent organization, Project for Fair Representation,
which is run by activist Edward Blum—are more interested in ending
affirmative action than making sure Asian American students get equal
treatment in college admissions. The lawsuit inspired a Twitter hashtag, #
IAmNotYourWedge, and a petition condemning the suit as a thinly veil... 阅读全帖 |
|
u*****a
发帖数: 6276 | 49 下面才是逻辑！
slippery slope argument:
同性恋合法了 --〉 兄妹恋，父女恋，人兽恋 也会合法。
Pattern:
If we allow A to happen, then Z will eventually happen too, therefore A
should not happen.
Explanation: The problem with this reasoning is that it avoids engaging with
the issue at hand, and instead shifts attention to extreme hypotheticals.
Because no proof is presented to show that such extreme hypotheticals will
in fact occur, this fallacy has the form of an appeal to emotion fallacy by
leveraging fear. In effect the argum... 阅读全帖 |
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t******l
发帖数: 10908 | 50 problem-solving classes demand that the pupils execute the cognitive bench
press:
investigating, conjecturing, predicting, analyzing, and finally verifying
their own mathematical strategy.
The point is not to accurately execute algorithms, although there is, of
course, a right answer (...). Truly thinking the problem through—creatively
applying what you know about math and puzzling out possible solutions—is
more important.
Sitting in a regular ninth-grade algebra class versus observing a middle-... 阅读全帖 |
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