h*****s
发帖数: 821 | 1 Just some thoughts after my past 1.5 months of picking up running again.
I remember that in high school, the best distance runner (well, at that time
, 1500m and 3000m are generally considered the long distance running.) are
usually fit visually. They look vibrant, atheletic and fast. But now after
my past few weeks of running in the gym, I found that good distance runners
are not necessarily in good physical shapes.
There is this chubby Indian girl running in my gym who look like she need to
lo |
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j*********g
发帖数: 3826 | 2 ☆─────────────────────────────────────☆
htabbas (LOL) 于 (Thu Sep 17 02:50:16 2009, 美东) 提到:
Just some thoughts after my past 1.5 months of picking up running again.
I remember that in high school, the best distance runner (well, at that time
, 1500m and 3000m are generally considered the long distance running.) are
usually fit visually. They look vibrant, atheletic and fast. But now after
my past few weeks of running in the gym, I found that good distance runners
are not necessarily in good |
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T****a
发帖数: 4651 | 3 can we see your race video?
it's funny how we continue to make surprising finding about ourselves
through running. until a couple of months ago, i didn't know my right foot
has a higher arch than my left, which overpronates and causes pain in my
right ankle, right heel, right hip, and sometimes all the way to my lower
back. now days I wear a pair of superfeet insoles to support my right arch.
i thought i was the only one with this problem, apparently, i'm not alone.
right |
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w****1
发帖数: 4931 | 4 I always thought that since I haven't been doing much marathon training with
ball landing, my calfs don't have enough endurance to carry me through an
ultra. In my last ultra race, I felt very natural to do forefoot/midfoot
strike at the beginning, and did it for at least 10-15 miles I think. At
some point my right calf got a little sore and I tried to combine a bit of
heel strike. But after 9 hours, when my ankles started to hurt, heel strike
became unbearably painful, and I was forced to run o |
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m**k
发帖数: 18660 | 5 it is strange to me though.
I thought you need to hold your calf to do forefoot running, which could
put more pressure on it?
with
strike
. |
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y******n
发帖数: 4527 | 6 Nice one. I have not thought about the marketing view. But I did feel that
triathlon sounds a little more fancy than running although I of course
considered myself a runner. You just inspired me to try a triathlon as soon
as possible.
A person who finished Ironman would be called "Ironman".
However, a person who finished 100 miler would probably be called "Crazy,
Insane, or Are You OK man" instead of "superman, ultraman..."
so |
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i*********5
发帖数: 19210 | 7 【 以下文字转载自 Tri 讨论区 】
发信人: ironman2015 (1/2 ironman), 信区: Tri
标 题: Marathon Thoughts
发信站: BBS 未名空间站 (Wed Jan 4 22:17:47 2012, 美东) |
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N******y
发帖数: 71 | 8 Never seen 3.5 vs. 4.5. So it is just watering.
Just my thought that it is tough to keep playing at the highest level all
the time. US Open semi Shawa vs Mauresmo. 6:0, then 4:6 (?), then 6:0 again.
I think that Shawa let down a little and wow, lost a set. Same thing
happpened to Federer in the final, first game second set. And they are the
best players. For 4.5, can he/she keeps playing at their best level for two
sets and not let down a little against a weak player? |
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z*****g
发帖数: 85 | 9 A 40/80 limited hold'em game. A fat guy who was sitting right next to me. I
had no experience against him before. Looks kind of weak, reasonable at
first impression (it was proved totally wrong later).
It was a kill pot (60/120 then), he was the killer. All fold to me, and I
raise with JJ. SB called, and he called. Flop came with 9T3, SB bet out, he
raised, I 3-bets. SB folded, he called. Turn is an A, he checked, and I bet,
he check-raise me. My thoughts: I really didn't worry about the A, beca |
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i*********t
发帖数: 5873 | 10 瑞金城外有个小村子叫沙洲坝。毛主席在江西领导革命的时候，跟那儿住过。dearborn
有个馆子叫big fish，俺在底特律投靠资本主义的时候，总去那儿吃饭。一次russ多喝
了两杯bombay gin，说起年轻时不易，终日为工作奔波，老婆生产都没能赶回去，而她
毫无怨言，自己这辈子能找到这样的女人这样的爱真是幸运，等等。我说，操，你坚定
了我对共和党人的好感。俩人踉踉跄跄出门，他忽然一边摸车钥匙一边问：“have you
ever thought about fucking those california girls?”我一时反应不过来，只好
王顾左右：“why california？”“they are hot blonde sunshine! just like
tamako!” tamako是我们日本同事，一紫色头发身材瘦削皮肤惨白的北海道人。russ老
婆我也见过，pittsburgh土生土长的brunette。
今天上午图书馆卖书，转一圈，拣了本howard stern的private parts。checked out时
，老大姐笑，我也笑，心里想得是，二十多年前在学校... 阅读全帖 |
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b***e
发帖数: 15201 | 11 其实问题的实质是
have you ever thought about fucking any other hot girls
dearborn
you |
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D******D
发帖数: 1022 | 13 Remember the movie starts with the "A king has his reign. And then he dies.
It's inevitable." It is the exactly the same thing Meredith Vickers said to
his father before he left to see the engineer.
I actually thought it implied the engineer(space jockey) is looking for his
engineer, maybe trying to save himself (although he looked healthy maybe
dying inside??), but actually get killed by his creator exactly like the
later human did.And because his DNA formed the base for human DNA later, and
hu... 阅读全帖 |
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a****a
发帖数: 32 | 14 someone's post n the message it conceived rippled some thought and
reflection on me, and suddenly it brought 'Desiderata'(sth that i once read)
to my mind. ther4 post it to share with u all.
may all ur days be bright and full of peace, joy and hope. :) :)
Desiderata
Go placidly amid the noise and haste. And remember what peace there
maybe in silence. As far as possible speak your truth quietly and
clearly. And listen to others. Even to the dull and ignorant. They
too ha |
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M********t
发帖数: 5032 | 15 来自主题: Joke版 - 从引力波谈爱因斯坦的幸运 作者：施郁 （复旦大学物理学系） 2016年2月12日是中国农历大年初五。因为所谓“抢财神”的习俗，在零点前后，我当时所在的城市鞭炮声大作。这成了我浏览互联网上铺天盖地的引力波被探测到的新闻发布和原始论文的喜庆伴奏。当时, 我想到爱因斯坦的幸运，便开始写这篇文章。 爱因斯坦曾经感叹牛顿的幸运，而他自己又何尝不幸运至极。他在广义相对论方面的工作就有很多幸运之处。 在创立狭义相对论并为量子论奠基十年以后，居住在柏林的爱因斯坦在个人婚姻纠葛的时期，于1915年创立了广义相对论[1,2,3]，并在次年预言了引力波的存在[4,2]。1918年他得到能量变化率与质量4极矩3阶变化率的关系[5]。美国激光干涉引力波天文台（LIGO）观测到引力波这件事正好成为对广义相对论100周年的纪念。 广义相对论的精髓是物质运动与时空几何的统一和相互影响，在引力场方程上表现为能量和动量与代表时空弯曲程度的量之间的相等。引力使得时空弯曲，需要用非欧几里德几何描述。爱因斯坦创立广义相对论时，物理学家对此还不熟悉，但数学上对于非欧几何已经有深入的研究。在20世纪50年代后的广义相对论和杨-米尔斯场论大发展之前，几何独立于理论物理，取得了长足的进展，可以用杨振宁的诗句“欧高黎嘉陈”概述（指欧拉、高斯、黎曼、嘉当、陈省身）。而爱因斯坦创立广义相对论时，幸运地得到了他的数学家朋友格罗斯曼（M. Grossmann）的帮助，导致他能够最终成功地将物理思想用数学公式表达出来。 创立广义相对论的高潮在于爱因斯坦1915年的一段非常紧张的工作[2,3]。6月他在哥廷根向希尔伯特等人做了一个星期学术报告，介绍他在广义相对论上的工作。10月，爱因斯坦发现自己工作有错误，还听说希尔伯特也发现了他的数学错误并正在取得进展。11月4日开始，按照既定安排，爱因斯坦在普鲁士科学院每周一次介绍广义相对论。经过非常紧张的工作，爱因斯坦终于在11月16日收到希尔伯特的引力场方程之前取得成功，并算出与天文观测相符的水星近日点进动。在11月25日的最后一次报告中，他终于能够写下他的引力场方程。幸运的爱因斯坦！ 1861年，麦克斯韦写下后来以他的名字命名的电磁场方程组，在接下来的几年内他提出了电磁波的存在，并认为司空见惯的光就是一种电磁波。而完备的专著发表于1864年。赫兹在1887年（即麦克斯韦去世8年后）人工产生并探测了无线电波这种电磁波。与之类似，1916年爱因斯坦发表了一篇论文，预言了引力波[2]。爱因斯坦去世60年后的现在，引力波终于被探测到。在4中基本相互作用中，只有电磁作用和万有引力是长程的，所以引力波显然是了解宇宙的一个新窗口。 波是振动的传播。而引力波所传播的是时空度规的振动。度规是一种几何性质。比如平面或者球面上两点之间的间隔都可以用面上的坐标算出，但是公式不一样，这就是因为度规不一样。而在相对论中，有一个与参照系无关的固有时间间隔，它可由时间间隔和空间坐标间隔算出，具体的公式也取决于度规。当物质质量分布发生巨大的变化时，比如高密度天体（如中子星或者黑洞）之间碰撞或者恒星爆炸或坍塌时，会产生引力波。胡斯（R. A. Huse）和泰勒(J. H. Taylor Jr.)于1974年发现的脉冲双星（两个互相旋转的脉冲星）的轨道不断减小，这可以用引力波来解释。他们获得了1993年的诺贝尔物理学奖。理论上认为，宇宙极早期的暴涨会产生原初引力波，从而导致宇宙微波背景辐射在某个尺度上有某种偏振现象。该现象被位于南极的宇宙学河外偏振背景成像（BICEP2）望远镜于2014年观察到，但是后来发现是宇宙尘埃造成的。 LIGO观测到的引力波产生于两个黑洞的并合[6]。大约13亿年前两个黑洞并合产生的引力波于2015年9月14日经过LIGO的两个探测器。幸运的是升级后的LIGO在两天前刚开始运行[7]。这两个探测器实际上是两个巨大的迈克尔孙干涉仪。垂直于干涉仪通过的引力波使得每个干涉仪的4公里长的两臂的长度各有微小的振荡，导致振荡的相位差，从而给出振荡的干涉信号。110年前，狭义相对论解释了迈克尔孙干涉仪测量以太漂移的零结果。现在，迈克尔孙干涉仪又测量到了引力波，检验了广义相对论。确实，现代光学和精密测量技术对引力波探测立下汗马功劳，使得LIGO能够测出小于原子核大小的两臂长度差。历史上引力波探测曾催生量子非破坏性测量的概念，也有原来从事引力波探测的研究人员成为量子测量的专家。 回到爱因斯坦。1933年爱因斯坦移居到美国普林斯顿，引力、统一场论和对量子力学的质疑是他当时关心的问题。爱因斯坦和他的助手罗森（N. Rosen）寻找引力波方程的平面波解，发现这使得度规中不可避免会有奇点（变得无穷大）。现在我们知道这只是表明单一坐标系不足以描述平面引力波，就好比南极和北极的经度无法确定，不是物理上真正的奇点。但是他们当时却以此认为引力波不存在。1936年，他们写了一篇文章投到美国期刊《物理评论（Physical Review）》[8]。这时，爱因斯坦的幸运表现在文章被编辑泰特（John Tate）退回，要求考虑审稿人的意见。审稿意见长达10页，出于专家之手。其实，虽然指出爱因斯坦和罗森的错误，审稿人仍然认为这篇文章有值得赞誉之处，建议经过修改后发表。显然，气愤的爱因斯坦没有研究审稿意见，把文章原封不动地改投到《富兰克林学会会刊（Journal of Franklin Institute）》，文章很快被接受。再次幸运的是，从加州理工学院等地访问回来的同事罗伯森（H. P. Robertson，量子力学教科书上不确定关系的证明源于他）通过爱因斯坦的新助手英菲尔德告诉他们爱因斯坦-罗森工作的错误，并帮助解决了问题。这导致最后发表出来的文章结论完全改变了，成为圆柱状引力波[9]。爱因斯坦幸运地没有否定自己20年前对引力波的预言。近年来Kennefick发现，爱因斯坦本来可以通过阅读《物理评论》的审稿人意见知道自己的错误，因为罗伯森正是泰特为爱因斯坦-罗森文章所找的审稿人。这段历史的详细分析和记述来源于2005年Kennefick发表于《Physics Today》的文章[8]以及刘寄星发表于《物理》的文章[10]（根据美国物理学会期刊主编M. Blume参考Kennefick一篇预印本文章所作的报告，包含Kennefick文中所没有的泰特致爱因斯坦两封信件的复印件）。 几天前出现LIGO探测到引力波的传言时，我便想到爱因斯坦的这件事。 1936年的爱因斯坦幸运地被同行评议制度避免了发表一篇错误的论文，而1905年的爱因斯坦恰恰曾幸运地因为德国《物理学年鉴(Annalen der Physik)》的宽松而得以在该杂志发表5篇改变物理学的论文，特别是看上去离经叛道的狭义相对论和光量子论文。而在爱因斯坦移居普林斯顿后完成的爱因斯坦、罗森和玻多尔斯基（B. Podolsky）质疑量子力学完备性的论文（EPR论文）以及爱因斯坦和罗森关于爱因斯坦-罗森桥（即虫洞）的论文都未经审稿在物理评论发表[8]。后来的历史表明这两篇文章也极为重要，当然是应该发表的。EPR成了爱因斯坦被引用最多的论文。Kennefick认为引力波当时是广义相对论众所周知的预言，所以泰特经过犹豫后将爱因斯坦-罗森证明它不存在的这篇论文送审。而关于爱因斯坦-罗森桥的论文是当时与别人进行的一个争论，所以未经审稿直接发表。那么，质疑当时从一个胜利走向另一个胜利的量子力学的EPR论文为何不经审稿直接发表呢？笔者认为，这是因为EPR承认量子力学技术上的正确性，质疑的只是量子力学的完备性，即是否完全描述客观实在，讨论具有哲学性质。顺便说一下，最近这两篇论文在关于黑洞量子性质的理论讨论中被联系起来。 1917年，爱因斯坦将广义相对论用于宇宙学[11]。如果只有引力而没有斥力，宇宙整体上不能保持静止，所以他在引力场方程中又加了一个代表斥力的宇宙学常数项，虽然他也觉得这个做法很不自然（现在我们知道这也不能真正使宇宙静止）。但是很快人们开始讨论宇宙膨胀，从弗里德曼(A. Friedmann) 、勒梅特（G. Lamaite）和德希特（W. de Sitter）等人的模型研究到哈勃(E. Hubble)的1929年的观测发现。 大爆炸宇宙学的创始人伽莫夫（G. Gamow）在他的自传《我的世界线(My Worldline)》（笔者本科生时代读到这本书后，一直记忆犹新，所以将世界线用于本人的博客名称中）中告诉我们，爱因斯坦曾说过宇宙学常数是他一生最大的错误[12]。所以1936年爱因斯坦-罗森关于引力波的文章所用的引力场方程中，已经没有宇宙学常数。但是在当代，作为联系宇宙学与微观的量子场论的一个桥梁，宇宙学常数成了一个重要的研究课题。近年来宇宙加速膨胀和暗能量的发现更使得宇宙学常数的概念得到复活。这又是爱因斯坦的幸运，虽然他失去了预言宇宙膨胀的机会。 最后，用笔者与杨振宁先生以前的一段讨论结束本文。 施：您认为爱因斯坦(而非麦克斯韦)是仅次于牛顿的伟大物理学家。我也这样认为。您能不能简单说说您的理由？ 杨：麦克斯韦是一位伟大的物理学家，他对人类的贡献无法可以被夸大。但是从对物理学基本概念的贡献的角度来说，他不能与爱因斯坦相比。爱因斯坦（1）改变了我们对于时间和空间的理解，从而给理论物理带来对称性的概念和对称性支配相互作用的思想，（2）创造了引力的几何概念，（3）帮助创立了量子力学。 感谢杨振宁先生的交流和阅读本文。 参考文献: [1] A. Einstein,Sitzungsber. K. Preuss. Akad. Wiss. (1915) 844. [2] A. Pais, Subtle is the Lord, OxfordUniversity Press, New York (1982). [3] W. Isaacson, Einstein:His Life and Universe. Simon & Schuster, New York (2007). [4] A. Einstein,Sitzungsber. K. Preuss. Akad. Wiss. (1916) 688. [5] A. Einstein,Sitzungsber. K. Preuss. Akad. Wiss. (1918) 154. [6] B. P. Abbott et al. (LIGO Scientific Collaboration and the Virgo Collaboration), Phys.Rev. Lett. 116 (2016) 061102. [7] E. Berti, Physics9 (2016) 17. [8] D. Kennefick,Physics Today, September 2005, p. 43. 这篇文章后来吸收进该作者的书《Traveling at the speed of thought》. [9] A. Einsteinand N. Rosen, J. Franklin Institute 223(1937) 43. [10] 刘寄星，物理，34, 2005, p.487. [11] A. Einstein, Sitzungsber.K. Preuss. Akad. Wiss. (1917) 142. [12] G. Gamow, 《My Worldline》, Viking, New York, 1977. (XYS20160218) 从引力波谈爱因斯坦的幸运
作者：施郁 （复旦大学物理学系）
2016年2月12日是中国农历大年初五。因为所谓“抢财神”的习俗，在零点前后，
我当时所在的城市鞭炮声大作。这成了我浏览互联网上铺天盖地的引力波被探测到的新
闻发布和原始论文的喜庆伴奏。当时, 我想到爱因斯坦的幸运，便开始写这篇文章。
爱因斯坦曾经感叹牛顿的幸运，而他自己又何尝不幸运至极。他在广义相对论方面
的工作就有很多幸运之处。
在创立狭义相对论并为量子论奠基十年以后，居住在柏林的爱因斯坦在个人婚姻纠
葛的时期，于1915年创立了广义相对论[1,2,3]，并在次年预言了引力波的存在[4,2]。
1918年他得到能量变化率与质量4极矩3阶变化率的关系[5]。美国激光干涉引力波天文
台（LIGO）观测到引力波这件事正好成为对广义相对论100周年的纪念。
广义相对论的精髓是物质运动与时空几何的统一和相互影响，在引力场方程上表现
为能量和动量与代表时空弯曲程度的量之间的相等。引力使得时空弯曲，需要用非欧几
里德几何描述。爱因斯坦创立广义相对论时，物理学家对此还不熟悉，但数学上对于非
欧几何已经有深入的研究。在20世纪50年代后的... 阅读全帖 |
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q*******1
发帖数: 2831 | 19 才发现，原来题目居然因字数限制没有贴全。
文章的题目是
Mum made sandwiches for imaginary friends and thought there was a little
girl trapped in the radiator |
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a**********d
发帖数: 206 | 20 I've thought google can help me. They did. |
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u**h
发帖数: 64 | 21 【 以下文字转载自 NewYork 讨论区 】
发信人: ucyh (飞越大洋的bedscholar), 信区: NewYork
标 题: Some Thoughts about Dictators, Cult Leaders, and World Peace
发信站: BBS 未名空间站 (Fri Apr 20 21:52:35 2012, 美东)
http://www.yuehaixiao.net/2012/04/dictators-cult-leaders-and-wo
This past Sunday, I read this in the news:
"North Korea's new leader Kim Jong-un addressed his nation and the world
for the first time on Sunday, vowing to place top priority on his
impoverished country's military.
(Kim Jong-un) calling his country "Kim Il... 阅读全帖 |
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e*****n
发帖数: 3129 | 22 http://news.nationalgeographic.com/news/2008/12/081203-homo-sapien-missions_2.html
Kate Ravilious
for National Geographic News
December 3, 2008
Modern humans may have evolved more than 80,000 years earlier than
previously thought, according to a new study of sophisticated stone tools
found in Ethiopia.
The tools were uncovered in the 1970s at the archaeological site of
Gademotta, in the Ethiopian Rift Valley. But it was not until this year that
new dating techniques revealed the tools to be far |
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w******d
发帖数: 1301 | 23 By talking to God, which is the prayer in the name of Jesus Christ.
And God will speak to you in prayer, bible and circumstances through Holy
Spirit.
By expericing God through obeying his will with a humble attitude. You will
not experience the joy of flying until you obey the requirement of sitting
in a airplane.
Before I became a Christian, I was suspicious about the bible and about the
miracles performed by Jesus. I thought it would be a miracle if someday I
will believe. But now I trust what |
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R******d
发帖数: 5739 | 24
it is a good analogy to compare scientists with blind, scientists are indeed
blind in many many field of scientific research. the more they study, the
more they claim they don't know about the nature. For example, the war
against cancer started 40 years ago, at the time when scientists thought
they can conquer cancer within decade, but after 40 yrs, there are
breakthrus, but the disease is far from cure. scientists 承认自己是瞎子 in
sicence. Yet, it is the religion that claims they are not blind. |
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s*******s
发帖数: 2369 | 25 【 以下文字转载自 board 讨论区 】
发信人: scuriolus (大尾巴老鼠), 信区: board
标 题: 申请thought版版三
发信站: BBS 未名空间站 (Fri Feb 2 02:35:06 2007), 站内
协助大老板搞好工作，谢谢 |
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r****y
发帖数: 26819 | 27 【 以下文字转载自 board 讨论区 】
发信人: xniteman (代发包子), 信区: board
标 题: 申请Thoughts板斧
发信站: BBS 未名空间站 (Fri Feb 26 01:18:26 2010, 美东)
前任版主，有治版经验，现在上网时间比较宽裕，希望为版面的繁荣昌盛出一份力，谢
谢。 |
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A*******s
发帖数: 8645 | 28 也不知道给不给批准
当年小毛可算给了Thoughts第二春(也许是第三,第四?)
记得那时候您老跟stormsaber等等,还真的都在这里讨论哲学也,我还说我都不敢冒泡.
现在咱们都堕落了,saber老兄也一心只想着挣小钱了,娃哈哈哈哈 |
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l****u
发帖数: 2166 | 30 With paja there will be an understanding of sense objects. For instance,
during the meditation sense objects are experienced which give rise to
feelings and moods. You may start to think of a friend, but then paja should
immediately counter with "It doesn't matter," "Stop" or "Forget it." Or if
there are thoughts about where you will go tomorrow, then the response would
be, "I'm not interested, I don't want to concern myself with such things."
Maybe you start thinking about other people, then yo |
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b**d
发帖数: 7644 | 31 我还有另一个thought,"我“可能只是一个念头而已，一个for some reason 重复出现
的念头，它以贪嗔痴为助缘。 possible?
Tolle |
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O*********9
发帖数: 552 | 32 俺觉着好像是会害人的
干扰的不纯啦
雪山飞狐那个谁练剑就是那样养成坏习惯
============================================
发信人: robbin (robbin), 信区: Wisdom
标 题: Re: 关于轮回的另一个thought
发信站: BBS 未名空间站 (Sat Jan 1 16:15:22 2011, 美东)
哈哈哈。。。这个方法好。 |
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b*x
发帖数: 54 | 33 a few times I rode 52L home. Dozed off and woke up to hear all the Chinese
spoken around me, I thought I was on a bus in Beijing.
But sometimes aren't they a little bit too loud? I mean, just a bit carried
away and forgot manners? |
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a*****l
发帖数: 27 | 34 Proctoring an exam for MBA students now. The good thing about MBA exams is
that you can water while they are doing the exam. So I had the time to write
down some random thoughts.
This post reminds me to think what makes a great consultant. I had the exactly
same feeling when I was a junior consultant a few years ago. I listened to
what seniors said and figured that I could say it as well and even better.
It turns out things are not as simple. I have learned two critical lessons.
The first one is |
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l*********k
发帖数: 2 | 35 Would you please give some thoughts and insights to a
beginner who
wants to start a career in Database field and about the
current trends
in Database job market? Thank you. |
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g*******g
发帖数: 108 | 36 discussion at c*****[email protected]
I get my thoughts on RAC based on my experience, I do not remember where I
get the anology "amplifier". I doubt it is from Tom Kyte, he rarely
criticizes an Oralce product, maybe he did/will, i can be hold responsible
for his words :)
Let's focus on the tech side now.
I characterize primary feather of OLTP is "use interaction", queries run
fast and expect few records. Repeatedly used data are cached in the data
buffer.(typically)
In a sequential read w... 阅读全帖 |
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g*******g
发帖数: 108 | 37 discussion at google group: c*****[email protected]
===============================================================
Scenario -1. I think you are meant IO latency? RAC will help you in this
case.
My thought on RAC in this scenario is that, RAC improves application
throughput, reduces application latency. You have to figure out/determine
what is important to you. I assume CPU, other resources are not the
bottleneck.
Scenario -2. Yes, RAC will guide against a node failure.
... 阅读全帖 |
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a****b
发帖数: 489 | 39 Any thoughts/concerns/best practices about two slowly chaning dimensions
have FK relationship?
Thanks |
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s*****g
发帖数: 1055 | 40 Current Internet Exchange (or any other business exchanges that need to
provide ad-hoc peering services) architecture is mostly composed to big
chassis routers/switches, those big boxes are configured to provide a big L2
-fabric, either pure L2 or different flavors of MPLS L2 VPNs, problem with
this design is, per-port cost of big switches are high, network can get
overly complicated in control plane, big boxes tend to less stable than
fixed configuration because the software is much more compli... 阅读全帖 |
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s*****g
发帖数: 1055 | 41 Current Internet Exchange (or any other business exchanges that need to
provide ad-hoc peering services) architecture is mostly composed to big
chassis routers/switches, those big boxes are configured to provide a big L2
-fabric, either pure L2 or different flavors of MPLS L2 VPNs, problem with
this design is, per-port cost of big switches are high, network can get
overly complicated in control plane, big boxes tend to less stable than
fixed configuration because the software is much more compli... 阅读全帖 |
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g**********y
发帖数: 14569 | 43 I haven't touched javascript for quite a few years. In my last memory, it is
an ugly language -- limited capability, hard to debug.
In the tide of AJAX, I take a look at current Javascript. "AJAX in action"
is my reference. Following are some random thoughts:
* I am surprised at javascript's support of functional programming. Java
plan to add it in SDK 7, falling behind. And it's interesting to know that
javascript has nothing to do with java.
* I really hate to see statement like:
Function.prot |
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n********k
发帖数: 2818 | 44 Eat too much and Very bored of the dissertation writing so here it goes:))):
After having gone through a long, boring and painful postdoc hunting process
and Having seen some posters/questions, I decided to take some time to share
my experience and thoughts with anyone who have a true passion for science but
might be still struggling like I was, hoping it might be useful in anyway or
no way. I wish to apologize for this long and confusing poster in advance but
I tried to give details so that it |
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u**********n
发帖数: 83 | 45 Thanks. I will take that as an compliment. :)
You brought up a good point. I haven't really thought it through why I
wanted an MBA and how it can benefit my career. I guess I wanted a career
change. I want to get into the fancy industries such as IB, PE, etc... Also
, I was hoping that an MBA from a top university will somehow do me some
good down the road.
So I would appreciate any insights and comments. Thanks. |
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S*********h
发帖数: 61 | 46 Anybody knows about 3D printer? Any thoughts and comments? |
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G*O
发帖数: 687 | 47 【 以下文字转载自 Engineering 讨论区 】
发信人: GEO (CEO), 信区: Engineering
标 题: [合集] Some general thoughts on SE I
发信站: BBS 未名空间站 (Tue Jul 31 21:37:41 2007), 站内
☆─────────────────────────────────────☆
ZQBX (自戕不惜) 于 (Mon Nov 13 11:24:50 2006) 提到:
- problems are not very calculation involved, but very diverse in nature.
- timewise, the exam is fast-pace, no time for 2nd check and deep thinking.
- prepare everything, collect all code standards, seriously.
- understand key part of standard specifications of |
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