m********e
发帖数: 5088 | 1 我觉得还是应该的
taunting确实太贱
不过我觉得应该是touchdown之前的taunting negate TD
TD后的taunting negate飞狗
不然也没有OT站在美国队中场星星上的经典画面了 |
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l*****8
发帖数: 16949 | 2 就事论事，我觉得negating TD是正确的判决。这个其实等于personal foul.如果犯规
发生在TD之后，那确实不应该negating TD.但如果在跑过端线前就taunt，那从犯规地
点罚15码我觉得是正确的。
这种个人愚蠢伤害全队的多了。比如野马那个99号，还有无数最后一节最后一个drive
莫名其妙的personal foul,没有哪个说可以只罚钱不罚球队的。再说了，这种taunting
其实比那些无脑personal foul更可恶。因为后者一般是落后或者被对方outplay恼羞成
怒，肾上腺激素太高情绪没法控制造成。这个taunting要容易控制的多。 |
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d*********o
发帖数: 6388 | 3 http://profootballtalk.nbcsports.com/2013/10/30/nfl-may-conside
When Seahawks receiver Golden Tate began waving at Rams safety Rodney McLeod
at the 25-yard line on Tate’s way to an 80-yard touchdown, the official
threw the flag before Tate had even crossed the goal line. But even though
Tate committed a penalty before he scored, the touchdown still counted.
Next season, a player who does the same thing may negate his own touchdown.
NFL head of officiating Dean Blandino said on NFL Network that h... 阅读全帖 |
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l***4
发帖数: 1788 | 4 leetcode上的divide integer题，小弟的code总是在2147483647, 1这个case上用时过
长，请高手帮忙挑挑bug 拜谢~
code如下：
int divide(int dend, int dor) {
// Start typing your C/C++ solution below
// DO NOT write int main() function
long dividend=dend;
long divisor=dor;
if(dividend==0||divisor==0)
return 0;
int negate=1;
if(dividend<0){
dividend=-dividend;
negate=-negate;
}
if(divisor<0){
divisor=-divisor;
... 阅读全帖 |
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y******n
发帖数: 155 | 5 If your negative negates my positive, than i shall negate your negative with
my positive negativeness to negate your negative attempt on my positive.
positive,
Uncle |
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h**********d
发帖数: 4313 | 6 career cup上有这题，在最后median/hard那类
减法就是加上negate的数
乘法就是加上n次自己
除法就是加上n次negate自己
另外写个函数判断一正一负，如果是就negate最终结果 |
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t*******r
发帖数: 22634 | 7 马克兄，俺本着严肃认真的态度，更正一下上面的证明过程。
俺今天早上其实跟娃花了几分钟 review 了一下这个“负负得正”
（这个差不多一年前说的）。娃说忘了具体证明过程，然后俺快速
复述的时候，发现俺昨天贴方式不太好。具体来说：
（1）不要用瓶子和天平。那个是俺后来解释方程和代数用
的。证明负负得正不需要那些乱七八糟的东西。Simplistic is better。
而且东西越少，越适合在大脑中直接分析，不需要草稿纸。
（2）同上，不要用 2 个 ball，3 个 hole。object 数目
多了反而混乱。
（3）要完整证明 “正负得负” 和 “负负得正”。只证明
“负负得正” 反而会 confuse 娃。
（4）即使娃忘了具体证明过程，俺问过娃后来有没有犯符号
错误（粗心不算），娃说没有。。。俺认为娃版证明还是有用
的，即使是忘了，但是 subconscious may drive instinct。
我现在重写一下对娃比较易懂的证明：
0 是 empty/nothing
(+1) 是 ball
(-1) 是 hole
0 => (+1) + (-1)
0 * (+1) = 0
... 阅读全帖 |
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t*******r
发帖数: 22634 | 8 我下面的分析，可以狠负责地告诉你，这就是小学四年级数学老师没教好。
小学四年级，出现第一个 unary operator => negation operator
（求负算符）。
而 negation operator 的 “anti-operator” （inverse），就是
negation operator itself。但这并不是 axiom，这个是从 addition
operator （加法算符，是个 binary operator）以及 zero（零）导出
的。（或者另一种学究说法：娃版证明 zero 的 properties 里的
additive inverse property）。
但小学数学老师从来不教这个，所以很多娃就 take wrong logic for
granted（小学数学老师说了，“法兰西是培根”！！）。然后到你这边，
一看 derivative operator 是个 unary operator，但好像
“anti-operator” 居然不是 itself。你学生的大脑 CPU 基本指令集
设计错了，碰到这个测试用例，当然就是 “garba... 阅读全帖 |
|
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G**********e
发帖数: 11693 | 9 不让我解释就对了呗？我并非全篇的negate, negate, negate，你仔细读一读好吧～
说出来是不希望客人完全按照自己的想法去认为一些东西，完了希望客人可以理解我们
为什么这么做，如果理解不了的话，那自然是没有办法了～但这并非是“你爱来不来”
这么一回事，能理解，非常欢迎。 |
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G**********e
发帖数: 11693 | 10 不让我解释就对了呗？我并非全篇的negate, negate, negate，你仔细读一读好吧～
说出来是不希望客人完全按照自己的想法去认为一些东西，完了希望客人可以理解我们
为什么这么做，如果理解不了的话，那自然是没有办法了～但这并非是“你爱来不来”
这么一回事，能理解，非常欢迎。 |
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E*****m
发帖数: 25615 | 11
于逻辑学中的
negation,而不是opposition，对吗？我想请问这是中文逻辑学中一种约定俗成的翻译
吗（比如在台
湾）？如果不是，可能会有很多人会来challenge你对“相反”一词下的定义。
其實"相反" 不是邏輯用語， negation 是， opposition 應該不是。 所以我這裡
講的事實上比較接近 negation。
我其實更想解釋的不是"相反" 這個詞， 而是那種互斥對比的關係。 |
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n********n
发帖数: 8336 | 12 The existence of God using logical absolutes
This is an attempt to demonstrate the existence of God using logical
absolutes. The oversimplified argument, which is expanded in outline form
below, goes as follows: Logical absolutes exist. Logical absolutes are
conceptual by nature--are not dependent on space, time, physical properties,
or human nature. They are not the product of the physical universe (space,
time, matter) because if the physical universe were to disappear, logical
absolutes w... 阅读全帖 |
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I******a
发帖数: 3812 | 13 Yes. See today's NY Times.
http://www.nytimes.com/
For negative news, see above argument: if your negative negates my positive,
then I shall negate your negative if I can, and that's precisely what Uncle
Sam has been doing. |
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C****n
发帖数: 2324 | 14 看到YAHOO上这个COMMENT， 更加觉得 ZIMMERMAN 应该无罪释放。 更加证明了我的直
觉： 在这种情况下， 就算 ZIMMERMAN 大骂 MARTIN， 甚至先动手， 也应该无罪释放
。虽然我对法律没有深究。
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Fortunately for Zimmerman, there is no evidence to support a conviction on
2nd Degree Murder. Even Manslaughter would be next to impossible to convict
on, as the state would have had to prove Zimmerman acted in a way that put
Trayvon Martin's life in danger. It's not illegal to get out of your car and
follow someone. Hell, Zimmerman could have been walki... 阅读全帖 |
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c*********d
发帖数: 9770 | 15 论林彪反党集团的社会基础
On the Social Basis of the Lin Piao Anti-Party Clique
姚文元
by Yao Wen-yuan
[This article is reprinted from Peking Review, #10, March 7, 1975, pp. 5-10.]
毛主席在讲到必须搞清楚无产阶级对资产阶级专政的问题时明确指出：“林彪一类如上
台，搞资本主义很容易。因此，要多看点马列主义的书。”这就提出了一个极其重要的
问题：即“林彪一类”的阶级本质是什么？林彪反党集团产生的社会基础是什么？把这
个问题弄清楚，对于巩固无产阶级专政、防止资本主义复辟，对于坚定地执行党在社会
主义历史阶段的基本路线，一步一步地造成资产阶级既不能存在也不能再产生的条件，
无疑是十分必要的。
SPEAKING of the necessity for a clear understanding of the question of the
proletariat exercising dictatorship over the bourgeoisi... 阅读全帖 |
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s*******1
发帖数: 16479 | 16 检方就“不救援”这项的指控是指很长一段时间，包括从Gurley中枪倒地开始算起(“
showed indifference to Gurley as he lay dying.”; ) 这里有明显逻辑错误，因为
梁警官一开始跑出八楼楼道并和Landau争论的时候，虽然Gurley已经中枪并躺倒在五楼
，梁警官和landau都不知有人中枪，这个时候延误的时间，和 “recklessly”没有任
何关系。在发现Gurley中枪之前，梁警官应该只是为走火本身违反规则而惊慌失措。从
发现Gurley中枪到梁最终用Radio报告，最多只有四分钟左右的时间(邻居于11:14:46
pm 打通911，然后又做了一些和 EMS operator 对话，然后回家拿毛巾教Butler止血等
事后，才看见梁和Landau从楼上下来，而梁最晚也在11:19:46 pm 用Radio报告)。
梁警官的各种惊慌失措表现 (八楼的表现，Zelekov警官的“frozen”证词，和后来
Landau的“distraught and that his mental condition deteriorated rapi... 阅读全帖 |
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h*******1
发帖数: 4830 | 17 9 Things Every Parent with an Anxious Child Should Try
As all the kids line up to go to school, your son, Timmy, turns to you and
says, "I don't want to take the bus. My stomach hurts. Please don't make me
go." You cringe and think, Here we go again. What should be a simple morning
routine explodes into a daunting challenge.
You look at Timmy and see genuine terror. You want to comfort him. You want
to ease the excessive worry that's become part and parcel of his everyday
life. First, you try lo... 阅读全帖 |
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t*******r
发帖数: 22634 | 18 实际上很简单，把 (sin(x))' = cos(x)，改写成
(sin(x))' = sin(x + (1/2)*pi)。
（小学生的话，就在笛卡尔坐标系里，画两条从原点
开始等长并且垂直的线段，从线段终点拉一条垂直落到
x 轴的线段，形成两个全等三角形，证明这个改写）。
然后因为微分算符的换元特性，所以就写成：
sin(x) => sin(x+(1/2)*pi) => sin(x + pi)
=> sin(x + (3/2)*pi) => sin(x) 回到起点
形成环结构。该环结构是四点构成的环结构。
对比一下，negation operator 其实也形成环结构。
但区别是，negation operator 形成的，是两点
构成的环结构。
如果还看不出来那俩 unary operator （在给定的
子空间上）的区别和联系的话。。。废柴。 |
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t*******r
发帖数: 22634 | 19 -(-1) 是 negation of negative one (unary operator: negation)
(-1) * (-1) 是 negative one multiply negative one (binary operator:
multiplication)
这俩不是同一个东西。。。不过大部分人当公理记住也成。 |
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t*******r
发帖数: 22634 | 20 我娃看到 synthetic division 准备跳过去，我看了一眼表示支持。。。不过说了一句
，如果以后学校有要求，那也得从众一下。
另外我也同意都学多项式了，再纠结减法就是脱裤子放屁。。。看成负数系数（以及
negation of negation），然后统统（乘起来再）加起来就完事了。。。而且更符合
distributive property 的理解角度，也更符合 subtraction 本质是 additive
inverse 的理解角度 。。。俺娃也认为这样更清晰直观不容易出错。。。 |
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M****7
发帖数: 13407 | 21 http://www.lettersofnote.com/2012/09/i-shall-always-be-with-you
On June 8th of 1950, nine months after being arrested by the Czech secret
police on suspicion of leading a plot to overthrow the Communist regime, 48-
year-old socialist politician Milada Horáková was found guilty of "high
treason" following a show trial that was broadcast on national radio, and in
which she remained defiant. On the 27th of that month, despite
international outcry and a petition signed by, amongst others, Albert
Ein... 阅读全帖 |
|
l****n
发帖数: 432 | 22 California Department of Motor Vehicle Point System
Violating California driving and traffic laws can result in fines, the
suspension of your driving privileges, and even imprisonment. The California
Department of Motor Vehicles (DMV) uses a point system to track violations
and their corresponding penalties. Points are added to your driving record
if you receive a traffic ticket for moving violations.
MOVING VIOLATIONS AND POINTS Different violations are assigned different
point values, which ar... 阅读全帖 |
|
|
N*******8
发帖数: 1449 | 24 请问老 E,你有能力证明神不不存在吗?
----------------------
发信人: Eloihim (真神), 信区: TrustInJesus
标 题: Re: 我相信沒有神(譯)
发信站: BBS 未名空间站 (Thu Apr 12 17:00:27 2012, 美东)
嘿嘿！ 你有證據，我一定相信你。 你敢説有證據證明神不存在就不信神嗎？
-----------------------
请读下面这个文章.
http://www.philosophynow.org/issues/78/Wheres_The_Evidence
The New Atheism
Where’s The Evidence?
Michael Antony argues that the New Atheists miss the mark.
“A wise man,” wrote Hume, “proportions his belief to the evidence.” This
is a formulation of evidentialism – the view that a bel... 阅读全帖 |
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Y**u
发帖数: 5466 | 25 ☆─────────────────────────────────────☆
TrueStory (不是幸福的坑不挖) 于 (Wed Oct 26 15:21:06 2011, 美东) 提到:
It's easier said than done.
释永信：我的态度就像昔日寒山(文殊菩萨化身)问拾得(普贤菩萨化身)：世间谤我、欺
我、辱我、笑我、轻我、贱我、恶我、骗我，如何处治乎？拾得曰：只是忍他、让他、
由他、避他、耐他、敬他、不要理他，再待几年你且看他。
http://www.mitbbs.com/news_wenzhang/SportsNews/31198903.html
☆─────────────────────────────────────☆
taipingnan (泰平之南) 于 (Wed Oct 26 15:36:00 2011, 美东) 提到:
you got it.
it is even very hard to be not said.
☆─────────────────────────────────────☆
leonana ... 阅读全帖 |
|
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t******g
发帖数: 17520 | 27 网络ZZ
可以和这篇阿姜查的故事一起看， 有很多相同之处
http://mitbbs.org/article_t/Wisdom/31654341.html
克里希那穆提教导的核心
克里希那穆提, 核心, 教导
（写于1980年10月21日）
克里希那穆提教导的核心，包含在他1929年表述的命题中：“真理是无路之国。”人不
可能通过任何组织、任何信仰、任何教义，牧师或仪式、任何哲学知识或者心理技巧，
来达到它。他需要通过关系的镜子，通过理解他自己心灵的内容，通过观察而不是理智
的分析或者内省式的剖析，来找到它。人为自己建立了各种形象，以充当安全的围墙-
宗教的，政治的，个人的。它们以符号、思想、信仰的形式出现。这些形象的包袱，支
配着人的思想，他的关系，以及他的日常生活。这些形象是我们问题的源泉，因为它们
把人与人分割开来。他对生活的感知被他头脑中已经确立的概念所左右。他意识的内容
就是他全部的存在。这个内容是整个人类共有的。个性只是名与形，以及他从传统与环
境中所获得的表面的文化。人的独特性不在于表面，而在于从意识的内容中完全解放出
来，而这些内容是整个人类共有的。所以他不是一个个人。... 阅读全帖 |
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c**i
发帖数: 6973 | 28 (1) Samsung and its attractions | Asia’s New Model Company: Samsung’s
recent success has been extraordinary. But its strategy will be hard to copy
. Economist, Oct 1, 2011.
http://www.economist.com/node/21530984
Quote:
"It is easy to see why China might like the chaebol model. South Korea’s
industrial titans first prospered in part thanks to their close ties with an
authoritarian government (though Samsung was not loved by all the generals)
. Banks were pressured to pump cheap credit into the... 阅读全帖 |
|
w****o
发帖数: 367 | 29 我在最后总结一下：
1。"if (for every epsilon > 0, a <= b + epsilon) then (a<=b). " is true
The negation of it should be:
2。"(for every epsilon >0, a<=b+epsilon) and (a>b). "
我举的反例，不能证明了statement 2 is true，因为不能满足所有的epsilon.
3。"for every epsilon > 0, (if a <= b + epsilon, then a<=b) is wrong.
the negation of it should be:
4。There exists an epsilon > 0 such that (a <= b + epsilon and a>b)
我举的反例，恰好证明了statement 4 is true，所以，3 一定是伪。 |
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c*********d
发帖数: 9770 | 30 【 以下文字转载自 Military 讨论区 】
发信人: chinabbsdad (张果老他爹), 信区: Military
标 题: 论林彪反党集团的社会基础（汉英对照）
发信站: BBS 未名空间站 (Fri Nov 22 09:43:14 2013, 美东)
论林彪反党集团的社会基础
On the Social Basis of the Lin Piao Anti-Party Clique
姚文元
by Yao Wen-yuan
[This article is reprinted from Peking Review, #10, March 7, 1975, pp. 5-10.]
毛主席在讲到必须搞清楚无产阶级对资产阶级专政的问题时明确指出：“林彪一类如上
台，搞资本主义很容易。因此，要多看点马列主义的书。”这就提出了一个极其重要的
问题：即“林彪一类”的阶级本质是什么？林彪反党集团产生的社会基础是什么？把这
个问题弄清楚，对于巩固无产阶级专政、防止资本主义复辟，对于坚定地执行党在社会
主义历史阶段的基本路线，一步一步地造成资产阶级既不能存在也不能再产生的条件，
无疑是十分... 阅读全帖 |
|
m**d
发帖数: 21441 | 31 【 以下文字转载自 Joke 讨论区 】
发信人: mind (mind), 信区: Joke
标 题: 30款精神病 总有一款适合你
发信站: BBS 未名空间站 (Thu Dec 12 20:25:18 2013, 美东)
1、第欧根尼综合症：
Diogenes又名肮脏混乱综合症或众议院综合征
症状特点:
1.生活脏乱。
2.极度自卑感。
3.又强迫性的囤积行为，无法舍弃财物，过度的购买欲。
4.有强烈的隐居欲望，拒绝他人帮助。
5.主要出现在老年人上，有时伴随老年痴呆症。
2、外地口音综合症：
Foreign accent syndrome
外国口音综合症(Foreign accent syndrome)是一种临床上很罕见的病症通常伴随着严
重的脑损伤，此病导致患者说母语时如同带有外国口音，例如：一个美国人可能说话带
着法国口音。
3、科塔尔综合症
Cotard syndrome
以虚无妄想（nihilistic delusion）和否定妄想（delusion of negation）为核心症
状 患者主要是认为自身躯体和内部器官发生了变化. 部分或全部已经不存在了 如某患
者... 阅读全帖 |
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c**i
发帖数: 6973 | 33 (1) The Past.
John Steele Gordon, Tracks Across America. Wall Street Journal, June 12,
2011
http://online.wsj.com/article/SB10001424052702303657
404576361331013796182.html?mod=WSJ_Books_LS_Books_6
(book review on (a) Richard White, Railroaded; The transcontinentals and the
making of modern America. Norton, 2011 and (b) Maury Klein, Union Pacific:
The Reconfiguration; America's greatest railroad from 1969 to the present.
Oxford Univ Press, 2011)
Note:
(a) doughty (adj): "marked by fearless resolu... 阅读全帖 |
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T*******x
发帖数: 8565 | 34 Political positions of Ron Paul
-- from Wikipedia
Paul has been described as conservative, Constitutionalist, and&#
160;libertarian.[13] He has been nicknamed "Dr. No",[17]representing
both his medical degree and his insistence that he will "never vote for
legislation unless the proposed measure is expressly authorized by the
Constitution",[28] and "Mr. Republican".[179] One scoring method
published in the American Journal of Political Science[180] found
Paul t... 阅读全帖 |
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c**i
发帖数: 6973 | 35 Today (Aug 24, 2011) Pentagon releases
Annual Report to Congress: Military and security developments involving the
People's Republic of China 2011
http://www.defense.gov/pubs/pdfs/2011_CMPR_Final.pdf
(a) Note: The report talks about China's Anti-Satellite Test (ASAT)
superficially, at p 37..
(b) Quote:
"JIN-class (Type 094) SSBNs will eventually carry the JL-2 submarine-
launched ballistic missile with an estimated range of some 7,400 km. The JIN
and the JL-2 will give the PLA Navy its first cr... 阅读全帖 |
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w*********g
发帖数: 30882 | 36 世界经济的现状与中国的战略对策
远古的风 于 【文学城】的〖古风无痕〗博客 2011-08-29
本文从当下世界经济的现状入手，借鉴历史的轨迹，把握时代的脉搏，对中国在国民经
济、金融（特别是外储）管理、政治军事与科学文化等各个层面上应该采取的战略性对
策给予了探讨。
一、了解世界经济现状
首先，请阅读罗斯（John Ross）最新的有关世界经济现状的九篇好文章（看不懂英文
的可以直接跳过这一章，后文中都有综述）：
1）China’s growth will not be significantly reduced by slowdown in
developed economies - how China can use the global economy’s ‘countryside
’ to surround its ‘cities’
http://ablog.typepad.com/keytrendsinglobalisation/2011/08/china
2）Negative trends in world trade - further confirmation of... 阅读全帖 |
|
j****n
发帖数: 7636 | 37 Put this way. They are part of progress themselves. Of course, they can be
negated by bad examples. But I guess the trend is there. Now things
certainly are better than in the past maybe excluding the period of 86-89. |
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x****u
发帖数: 12955 | 38 Free possession of guns will effectively prevent the worst of CR from
happening. In the mean time, free possession of guns will effectively cause
officials to be much more subdued in their corruption, negating the need
for CR. |
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m**e
发帖数: 857 | 39 【 以下文字转载自 Biology 讨论区 】
发信人: muce (muce), 信区: Biology
标 题: Re: 要求撤稿的
发信站: BBS 未名空间站 (Tue Aug 7 13:23:01 2012, 美东)
华人生物学家协会出面要求撤稿
http://www.cbisociety.org/
Nature should adhere to fact-based and unbiased reporting
Philip Campbell, Ph.D.
Editor-in-Chief, Nature
Dear Dr. Campbell:
We write on behalf of the Chinese Biological Investigators Society (CBIS) to
express our deep concern regarding a recent news article, titled "Why great
Olympic feats raise suspicions" (www.nature.com/news/why-great-ol... 阅读全帖 |
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R****a
发帖数: 6858 | 40 人口過剩威脅遠超核武器；人口生滅的因與果；解決垃圾人口成當務之急 PART - 3
分類：Toxic Food 研究所
2012/05/22 23:02
分享 FacebookPlurkYAHOO!
http://tw.myblog.yahoo.com/transfinite-universe/article?mid=736
【POLICY FOLLOW-UP AND COORDINATION】
39. This world wide population strategy involves very complex and
difficult questions. Its implementation will require very careful
coordination and specific application in individual circumstances. Further
work is greatly needed in examining the mix of our assistance strategy and
its most effic... 阅读全帖 |
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x****u
发帖数: 12955 | 41
Stop evading the question. How did you figure there were multiple context
within that same sentence?
Also, the fact that someone gave order for the troops to fire doesn't negate
the responsibility of the people who deliberately created the condition
that caused that order to be given.
The bloodshed was absolutely avoidable, had people like Chai Ling didn't
push for it. |
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i*****s
发帖数: 4596 | 42 只会盯着被杀者，而对杀人者不置一词的人，在道德上是完全站不住脚的。
顺便告诉你一下，我们当年的人彼此间是战友的感觉，谁撤退谁掩护，是不幸的战场上
的需要，并不像你想的那样是各怀鬼胎。造成悲剧的是杀人的一方，而你的奴性思维假
设了他们无论做什么都是合理的不需要质疑的，对弱者毫无同情。
negate |
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p*********g
发帖数: 9527 | 43 http://www.cnn.com/2013/04/04/us/connecticut-gun-law-overhaul/i
(CNN) -- Saying he hopes it sets an example for the nation, Connecticut Gov.
Dannel Malloy on Thursday signed what advocacy groups call the strongest
and most comprehensive gun legislation in the nation.
The new law bans some weapons as well as the sale or purchase of high-
capacity magazines like those used in the Newtown shooting in December that
left 20 children and six adults dead.
It also requires background checks for all gun ... 阅读全帖 |
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P*******s
发帖数: 254 | 44 Well looks like you got some salvageable brain qualitative senility(S B Q S)
here.
One group signed him up and that is for money.
Another group toss racial slurs at him and that is because he is Asian.
You're trying to negate or rationalize the irrational behavior of the latter
with the rational behavior of the former. This stupidity though severe is
still curable. |
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y**********a
发帖数: 824 | 45 已经被驳回了，众索南散了吧。
On April 16th the Information Office in the State Council of the People’s
Republic of China released its newest edition of its defense white paper.
As usual, this document attracted immediate media attention and triggered
wide-ranging discussions on the intentions and capabilities of the Chinese
armed forces. One speculation has been that China might consider changes to
its long-held no first use (NFU) nuclear policy (See James Acton, “Is
China Changing Its Position on Nuclear W... 阅读全帖 |
|
y**********a
发帖数: 824 | 46 已经被驳回了，众索南散了吧。
On April 16th the Information Office in the State Council of the People’s
Republic of China released its newest edition of its defense white paper.
As usual, this document attracted immediate media attention and triggered
wide-ranging discussions on the intentions and capabilities of the Chinese
armed forces. One speculation has been that China might consider changes to
its long-held no first use (NFU) nuclear policy (See James Acton, “Is
China Changing Its Position on Nuclear W... 阅读全帖 |
|
o*********1
发帖数: 2608 | 47 顺便普及下非欧几何。
对空间相对性的思考完全从数学开始的，主要的想法是空间是不是绝对的（或者说是不
是只有一个理想的空间模型：欧几里得空间－－－就是平常说的平直空间）。 这是从
欧几里德第五公设开始的。
结论：
19世纪， Bolyai和Lobachevsky证明了非欧几何的存在。高斯更是理论上提出了曲率和
内蕴几何， 然后由黎曼推广到高维。 这些数学家的工作从哲学层面上说， 我们生活
的空间可能是平直的，也可能是弯曲的。黎曼更是第一个将时间和空间一起考虑的人，
所谓时空。
爱因斯坦是天纵之才， 用黎曼的语言提出了广义相对论。 他的工作的意义应该从
Bolyai的话来理解：
Bolyai ends his work by mentioning that it is not possible to decide through
mathematical reasoning alone if the geometry of the physical universe is
Euclidean or non-Euclidean; this is a task for the physical... 阅读全帖 |
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w********t
发帖数: 12853 | 48 By MICHAEL PREGENT And MICHAEL WEISS
Aug. 12, 2014 6:55 p.m. ET
The Islamic State of Iraq and al-Sham, aka ISIS, captured hundreds of
millions of dollars of U.S. military equipment as the Iraqi Security Forces
fled the terrorist group's advance on Mosul in June. The result is that ISIS
now has some very sophisticated weapons it is using to take and hold
territory in Syria and Iraq.
Yet ISIS is not nearly so invincible as its weaponry and territorial gains
have made it seem. The terror group has ... 阅读全帖 |
|
w*********g
发帖数: 30882 | 49 世界经济的现状与中国的战略对策
远古的风 于 【文学城】的〖古风无痕〗博客 2011-08-29
本文从当下世界经济的现状入手，借鉴历史的轨迹，把握时代的脉搏，对中国在国民经
济、金融（特别是外储）管理、政治军事与科学文化等各个层面上应该采取的战略性对
策给予了探讨。
一、了解世界经济现状
首先，请阅读罗斯（John Ross）最新的有关世界经济现状的九篇好文章（看不懂英文
的可以直接跳过这一章，后文中都有综述）：
1）China’s growth will not be significantly reduced by slowdown in
developed economies - how China can use the global economy’s ‘countryside
’ to surround its ‘cities’
http://ablog.typepad.com/keytrendsinglobalisation/2011/08/china
2）Negative trends in world trade - further confirmation of... 阅读全帖 |
|
