r*s
发帖数: 2555 | 1 【 以下文字转载自 Joke 讨论区 】
发信人: rbs (jay), 信区: Joke
标 题: 诺委会太不像话了
发信站: BBS 未名空间站 (Wed Oct 4 10:23:52 2017, 美东)
尼玛87篇参考文献就不能加一篇施教授或能教授的CNS？
References
1. Ruska, E., Nobel Lectures, Physics 1981-1990, Tore Frängsmyr and
Gösta Ekspong, Eds. (1993) World Scientific Publishing, Singapore
2. Marton, L. (1934) Electron microscopy of biological objects. Nature
133, 911-911
3. Althoff, T., Mills, D. J., Popot, J. L., and Kühlbrandt, W. (2011)
Arrangement of electron transport chain compone... 阅读全帖 |
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g**1
发帖数: 10330 | 2 黄荣毅爱逻辑分析 研究数学当艺术
记者俞姝含／纽约报导 2017年10月23日 06:26
669
人气
小 中 大
黄荣毅研究理论数学，入围西门子科学奖地区决赛。(黄荣毅提供)
黄荣毅研究理论数学，入围西门子科学奖地区决赛。(黄荣毅提供)
亨特学院附属高中(Hunter College HS)17岁学生黄荣毅(Brian Huang)喜欢研究理论数
学，日前入围2017年“西门子科学奖”(Siemens Competition in Math, Science &
Technology)地区决赛，热爱逻辑分析的他表示，他一向把学习当乐趣，研究数学也是
一门艺术。
黄荣毅的父母均是华南师范大学的校友，父亲在美国拿到数学博士学位，母亲也在美国
拿到电脑工程硕士学位。“小时候父亲在客厅放了一块白板，带我一起解比学校里教得
更难的数学题，让我了解到角度完全不同的数学。”自那时起他也爱上了数学，曾多次
入围美国数学邀请赛(AIME)、美国初级奥数竞赛(USAJMO)和美国奥数竞赛(USAMO)，也
曾在11年级拿到美国物理奥林匹克竞赛(US Physics Olympiad)铜奖。今年暑假，... 阅读全帖 |
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发帖数: 1 | 3 王孟源：为什么国际物理界没把悟空的这次发现当回事
王孟源
王孟源
哈佛大学物理学博士
分享到：
6
14
2017-12-02 08:40:23 字号：A- A A+ 来源：观察者网
关键字: 悟空暗物质暗物质粒子探测卫星
【文/ 观察者网专栏作者 王孟源】
物理界在1880年代就提出暗物质的猜测。一开始是因为银河系外围恒星的切向飞行速度
太快，银河系核心被观测到的质量远远不足以提供所需的向心力。后来在20世纪发现同
样的问题也出现在更大的尺度上，星系团（Galaxy Cluster）和超星系团（
Supercluster） 外围成员的切向飞行速度也是数倍于核心重力能维持的范围。如此一
来，只有两个逻辑可能，第一是每个星系（Galaxy）都有大量不参加强作用力（否则会
与原子核有反应）和电磁力（否则会与电子和质子有反应）的暗物质；第二，是广义相
对论的重力方程式在星系以上的尺度必须有新修正项。
近年来，用各种间接手段观测到的暗物质重力效应越来越多，要靠修改重力方程式来满
足所有的观测结果也越来越难自圆其说，所以暗物质就成为天文物理界的主流理论。
2017年11月... 阅读全帖 |
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f*******y
发帖数: 8358 | 4 月球不是perfect spherical，而是有点扁，导致有一方向比另一方向稍微沉一点。
在引力的作用下，沉的那个方向始终对着地球。
这个是中学课本都讲过的东西。 |
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w******n
发帖数: 1837 | 6 党的十九大报告双语全文
2017-11-06 14:51:58 （来自：新华社）
决胜全面建成小康社会夺取新时代中国特色社会主义伟大胜利
决胜全面建成小康社会夺取新时代中国特色社会主义伟大胜利
Secure a Decisive Victory in Building a Moderately Prosperous Society in All
Respects and Strive for the Great Success of Socialism with Chinese
Characteristics for a New Era
——在中国共产党第十九次全国代表大会上的报告
（2017年10月18日）
Delivered at the 19th National Congress of the Communist Party of China
October 18, 2017
习近平
Xi Jinping
同志们：
Comrades,
现在，我代表第十八届中央委员会向大会作报告。
On behalf of the 18th Central Committee of the Co... 阅读全帖 |
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发帖数: 1 | 7 choir
worcester
spherical
mauve
niche
albeit
lettuce
colonel
infamous
gauge |
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s**********s
发帖数: 7387 | 8 有说W88的，有说W87的
但1995年左右有中国特工受中国政府指示将资料递交美方确是事实....
李文和被捕即与此事有关，当然他只是一个出气筒——美方无法接受中国能够造出W87-
88这个级别的弹头的事实，从而怀疑中国在LA实验室内部有间谍
In 1999 a reporter for the San Jose Mercury News reported that the U.S. W88
nuclear warhead, a small MIRVed warhead used on the Trident II SLBM, had a
prolate (egg or watermelon shaped) primary (code-named Komodo) and a
spherical secondary (code-named Cursa) inside a specially shaped radiation
case (known as the "peanut" for its shape). [24] A story four months later
in The N |
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e***t
发帖数: 14386 | 9 http://en.wikipedia.org/wiki/Association_football
Association football, more commonly known as football or soccer, is a sport
played between two teams of eleven players with a spherical ball. At the
turn of the 21st century, the game was played by over 250 million players in
over 200 countries, making it the world's most popular sport. |
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q*a
发帖数: 2330 | 10 ☆─────────────────────────────────────☆
HQ (我是笨笨) 于 (Sun Aug 12 12:12:28 2012, 美东) 提到:
到处都是脑残贴。
中国男子足球有过群众基础过吗？现在注册人数连日本女足都不如！
曾经是被各大媒体报纸炒得很热。看联赛的观众人数，特别是足球不发达地区的观众人
数，屡创新高，球票曾经也能贵得惊人。但是，一共有多少人真正在认真踢足球呢？
就说当年著名的"成都保卫战"。就好像是全国媒体和球迷的心声一样，真的保卫了一个
所谓的金牌球市，但是，从那开始，各种假球黑哨也泛滥了。这个金牌球市真的这么重
要吗？除了把球票炒高，球员收入炒高，还有什么？金牌球市根本就不是金牌足球发展
地区。今天，那里已经没有顶级联赛的职业队伍了。可是那一年他挤掉的两个队伍，却
是中国足球最有群众基础的两个地区。
如果考虑到群众基础参与人数，世界各国的重视程度这些因素的话。可能很多项目比如
说跳水之类的，中国就算是连续n年包揽所有的金牌，也不见得比男子足球出线一次难。
拿一些专业打业余的个人项目，经常还是相对的冷门项目来对比嘲笑这种世界第一运... 阅读全帖 |
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l****z
发帖数: 29846 | 11 By Mark Steyn
March 17, 2012 4:00 A.M.
Our lesson for today comes from George and Ira Gershwin:
They all laughed at Christopher Columbus
When he said the world was round
They all laughed when Edison recorded sound
They all laughed at Wilbur and his brother
When they said that man could fly
They told Marconi wireless was a phony . . .
Fred Astaire and Ginger Rogers sang it in the film Shall We Dance? (1937).
Seventy-five years on, the president revived it to tap dance aro... 阅读全帖 |
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H**U
发帖数: 1814 | 12 给索男们增强点信心，别像某些人被美国文化洗脑后自恨得要把自己族裔都杀光了不可。
http://en.wikipedia.org/wiki/Neoteny
http://erectuswalksamongst.us/Chap6.html
A few key points:
1.“Neoteny” (new-stretch) refers to a gene-controlled change in the way
individuals mature, where they mature sexually at about a normal rate but,
although the body grows in size as they become sexually mature, their
juvenile features (and their ancestors’ juvenile features) are retained
into adulthood and are not replaced by distinctively different adult
featur... 阅读全帖 |
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l****z
发帖数: 29846 | 13 WH 'Confident' in IAEA's Reported Plan to Let Iran Inspect Its Own Suspect
Nuclear Site
(CNSNews.com) – The White House says it is “confident” in the U.N.
nuclear watchdog’s plans to investigate the “possible military dimensions
” of Iran’s nuclear program – plans which, according to an Associated
Press report, include allowing the Iranians themselves to inspect one of the
most controversial sites linked to the program.
The arrangements are laid out in an agreement between the International
Atom... 阅读全帖 |
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T*********I
发帖数: 10729 | 14 skunkworks好像还搞了几个patents。
A huge milestone was achieved in the development of a nuclear fusion reactor
as a UK-based device passed 15 million degrees Celsius, making it hotter
than the sun’s core.
The past few years have seen some major leaps in nuclear energy, potentially
offering the world a cost-effective, near-limitless and safe source of
clean energy.
Notable breakthroughs include efforts by a team of physicists from Colorado
State University that achieved record efficiency in a microscale ... 阅读全帖 |
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发帖数: 1 | 15 这个超大质量黑洞巨大的重力正在慢慢剥去这颗恒星含有的物质。（视频截图）
2016年07月08日讯——许家栋编译
据美国CNN报道，天文学家们最近观察到一颗恒星被一个超大质量黑洞捕获的过程。黑
洞巨大的重力先是慢慢剥去这颗恒星含有的物质，随后由于黑洞把引力能量转换成电磁
辐射，并产生了一个多波长、可见光的明亮光源，所以在黑洞周围形成了一个气态盘状
物。
黑洞周围随后就形成了一个气态盘状物，并有一束粒子的窄波束几乎以光的速度喷出黑
洞。（视频截图）
然后更具有戏剧性的是，一束粒子的窄波束几乎以光的速度喷出黑洞。
这种天体现象被称为“相对论性喷流”（relativistic jets），在近五年前首次被发
现。
吞噬恒星的超大质量黑洞
进一步有关一个黑洞如何吞噬一颗恒星从而产生这样爆发的线索是在今年三月份被揭示
出来。现在研究人员正在利用一个地球大小的“射电望远镜网络”（radio telescope
network）记录观察到的现象。
瑞典“查尔姆斯理工大学”（Sweden's Chalmers University of Technology）的杨军
（Jun Yang）带领下的一个国际... 阅读全帖 |
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i****x
发帖数: 17565 | 16 http://en.wikipedia.org/wiki/Surface_tension#Water
A. Beading of rain water on the surface of a waxy surface, such as a leaf.
Water adheres weakly to wax and strongly to itself, so water clusters into
drops. Surface tension gives them their near-spherical shape, because a
sphere has the smallest possible surface area to volume ratio.
不用谢。 |
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q**j
发帖数: 10612 | 17 搞清楚了。是美国人发明的，现在是日本的技术。
ROCHESTER, N.Y., Nov. 19 /PRNewswire-FirstCall/ -- Vernon E. Gleasman,
co-founder with his sons, James and Keith Gleasman, of Torvec, Inc. and
principal inventor with his sons of the Company's portfolio of paradigm
shifting automotive technologies, has died at the age of 92.
Mr. Gleasman was one of the world's most renowned inventors, being
listed
in the Who's Who of American Inventors for his over 200 inventions and
patents. He was the recipient of numerous nationa... 阅读全帖 |
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l****y
发帖数: 151 | 18 sical and Chemical Properties of OREWORLDTM Ceramic Proppant
Size
Density, g/cm3
Roundness
Sphericity
Crush Resistance
Acid Solubility, %
Turbidity
Test
52MPa
69MPa
86MPa
Bulk
Apparent
7500psi
10000psi
12500psi
12%HCL+3%HF
LD20/40
(0.425-0.85)
��?.7
��?.85
0.8-0.9
0.8-0.9
��?
��?
��?0
LD30/50
(0.3-0.6)
��?.7
��?.85
0.8-0.9
0.8-0.9
��?
��?
��?0
MD16/30
(0.6-1... 阅读全帖 |
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m**o
发帖数: 9805 | 19 俺们搞物理的只要数量级对了就成
spherical cow嘛... |
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发帖数: 1 | 20 Academic Position
Harvard University Rowland; Junior Fellow/Principal Investigator 09/2011 –
Present
University of California, Los Angeles; Postdoctoral Scholar (PI: Dino Di
Carlo Ph.D.) 06/2011 – 08/2011
Education and Training
University of California, Los Angeles Mechanical Engineering Ph.D. 2011
University of California, Los Angeles Mechanical Engineering M.S. 2007
University of California, Los Angeles Mechanical and Aerospace Engineering B
.S. 2005
Publication
13. Dwayne A. L. Vickers, Mengx... 阅读全帖 |
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c*****r
发帖数: 2608 | 21
美国也用度，大写的 D 来表示。
还有一些术语： 右眼： OD；左眼：OS；S：Spherical 球镜（近视或远视的度数）；C
：Cylindrical 柱镜（散光度数）
要看你是什么保险，有时保险还不如coupon 好用 |
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c******r
发帖数: 3778 | 22 OVERNIGHT CORNEAL RESHAPING (OCR) — Overnight corneal reshaping (OCR) is
the process of wearing a specially designed, rigid gas-permeable (RGP)
contact lens while asleep to temporarily effect a change in the corneal
curvature resulting in clear vision during waking hours without correction.
This technique is also referred to as:
●Corneal refractive therapy (CRT)
●Overnight corneal reshaping (OCR)
●Vision shaping treatment (VST)
●Orthokeratology (Ortho-K)
The process — After wearing OCR lenses, t... 阅读全帖 |
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l******a
发帖数: 1478 | 23 谢谢，下了一副 10到运费
需要的参数
S：Spherical 球镜（近视或远视的度数，远视为负）
C：Cylindrical 柱镜（散光度数）
A：Axls 轴位（散光度数的方向，如有散光就有轴位）
PD： Papillary Distanc 瞳距（两眼瞳孔之间的距离mm） |
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l****u
发帖数: 3130 | 24 【 以下文字转载自 Military 讨论区 】
发信人: laodou (别拿豆包不当干粮), 信区: Military
标 题: 武汉大学80后美女袁荃教授走红
发信站: BBS 未名空间站 (Wed Feb 29 14:21:37 2012, 美东)
姓 名： 袁 荃 Yuan _ Quan
出生年月：1982年2月
学历： 博士， 教授
专业方向：分析化学
电 话：
Email：y*********[email protected]
教育与研究经历
2000年9月– 2004年7月：武汉大学化学学士学位
2004年9月– 2009年7月：北京大学无机化学博士学位导师：严纯华院士
2009年9月-2011年12月：佛罗里达大学化学系博士后谭蔚泓教授课题组
2011年12月-现在：武汉大学化学学院教授
代表性成果
1.Quan Yuan, Yun-Fei Zhang, Ruo-Wen Wang, Chao-Lin Du, Emir Yasun, Yan Chen,
and Wei-Hong Tan* “Using Silver Nanowire Antennas to Enhance th... 阅读全帖 |
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l****u
发帖数: 424 | 25 我在法拉盛的华人眼镜行配眼镜。医生说，你的保险很好啊。后来组合了一副自选最便宜的，还要我
自付100多。我说，你的成本不会超过20块。服务员不爽。然后我说先验光吧，他很不愿意，知道我
要在网上买，不情愿下验了。还是不愿意测瞳距，又和他磨，测了。
瞳距可以用激光仪器测，也可以用尺子测。激光测完后必须要用尺子验证，我建议你手里握把尺子，
找一街头的闲汉给量一下就行了。要想精确？让三个闲汉侧完取其数学期望。
后来我说，给我一个最简单的眼镜，只有镜片合适，结果取的时候镜片还不合适，还要我自己付10
块钱，我对他说，你的眼镜5 块钱都不值。气的他干瞪眼。我敢傅责任的说它的进价低于5 刀。保险
公司还要付给他几十，这就是美国医疗的荒谬之处。
prescription.
the
Spherical
to
the
alters |
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k**********4
发帖数: 16092 | 26 yes, it is. I was sitting in a window seat when
I was transferring in Las Vegas, there was big fireball
just below the window when the plane was landing, somebody said it was
a spherical thunderbolt.but the plane landed eventually and
I won $20 at a slot machine at the airport when I was
waiting for my flight. |
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d*c
发帖数: 588 | 27 Apple engineers contemplated featuring:
Automatic doors that open and close silently
An interior without a steering wheel or pedals (which would mean the car
would have to be fully autonomous)
Virtual- or augmented reality built into interior displays for entertainment
purposes
Spherical wheels that would allow the car to drive sideways
Development of a more aesthetically pleasing driving system to replace the
clunky lidar system used by other companies developing autonomous cars |
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T**7
发帖数: 264 | 28 杂志是皇家化学学会的杂志，印象因子是6。
想审的同学请发给我：
1.名字
2.email
3.expertise 关键词（5个左右）
4.发表的文章
谢谢关注，希望大家好运
题目：Redox-triggered intracellular dePEGylation based on diselenide-linked
polycations for DNA delivery
ABSTRACT: Extracellular stability to protect DNA against nucleases and
stimuli-triggered intracellular DNA release are key factors in designing non
-viral gene vectors. In this study, diselenide-linked polycation mPEG-SeSe-
PEI was developed as a new type of PEG-detachable gene vector for redox-
responsive gen... 阅读全帖 |
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c*********o
发帖数: 1734 | 29 Email me at c*********[email protected]
With your name, brief background, email address.
Important: You need to register as a reviewer for Journal of Chemical
Engineering Science
I will recommend first three who contact me before tonight.
Title: Inter-particle coating variability in a continuous coater
Abstract:
The influence of particle axial motion on inter-particle coating variability
is studied in a rotating drum continuous coater. A mathematical framework
based on renewal theory is developed an... 阅读全帖 |
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a**v
发帖数: 406 | 30 消保會和衛生署是沒正經事可以幹了嗎？
松露巧克力沒松露 衛署要求下架
衛生署說，這根本就是在騙消費者，要改善。不改，以後想吃的松露巧克力，恐怕會吃
不到。不過業者也很冤的說，從國外進口的松露巧克力，外包裝就寫著松露的法文
TRUFFES，是直接翻譯，而且松露巧克力，是因為外型跟松露很像，才有這個名稱，不
是故意欺騙，會乖乖配合改名。
同時，Wikipedia裡Chocolate Truffle的條目：
A chocolate truffle is a type of chocolate confectionery, traditionally made
with a chocolate ganache center coated in chocolate or cocoa powder,
usually in a spherical, conical, or curved shape. Other fillings may replace
the ganache: cream, melted chocolate, caramel, nuts, almonds, berries, or
... 阅读全帖 |
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a**v
发帖数: 406 | 31 From Wiki
A chocolate truffle is a type of chocolate confectionery, traditionally made
with a chocolate ganache center coated in chocolate or cocoa powder,
usually in a spherical, conical, or curved shape. Other fillings may replace
the ganache: cream, melted chocolate, caramel, nuts, almonds, berries, or
other assorted sweet fruits, nougat, fudge, or toffee, mint, chocolate chips
, marshmallow, and, popularly, liqueur.
They are named for their resemblance to the truffle fungus |
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Z*********1
发帖数: 627 | 32 作为一个曾经做过26年学生的过来人,本人深知学生时代经济的拮据. 为此,为了减少学
生们的经济负担,特推出学生/无保险探亲老人眼睛检查特价, 限学生/无保险探亲老人
, 长期有效.
Eye Exam --- $49,
如有眼病需要扩瞳检查 --$75.
Contact Lens Exam: +$45 (existing spherical)
+$60 (first-time wearer or toric lens fitting)
请注意, 这个价格只是学生/无保险探亲老人特价, 与我们正常的收费或bill保险的价
格是完全不同的. 如果你的保险管眼睛检查, 走保险, 你只付你应付的copay.
Office:
MALDEN EYECARE CLINIC LLC
957 Watertown Street,
Newton, MA 02465
Phone: 617-969-0268
预约和check-in时请表明学生/无保险探亲老人身份. 本特价不能与任何coupon并用. |
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Z*********1
发帖数: 627 | 33 作为一个曾经做过多年学生的过来人,本人深知学生时代经济的拮据. 为此,为了减少学
生们的经济负担,特推出学生/无保险探亲老人眼睛检查特价, 限学生/无保险探亲老人,
长期有效.
Eye Exam --- $49,
如有眼病需要扩瞳检查 --$75.
Contact Lens Exam: +$45 (existing spherical)
+$60 (first-time wearer or toric lens fitting)
请注意, 这个价格只是学生/无保险探亲老人特价, 与我们正常的收费或bill保险的价
格是完全不同的. 如果你的保险管眼睛检查, 走保险, 你只付你应付的copay.
Newton Office:
MALDEN EYECARE CLINIC LLC
957 Watertown Street,
Newton, MA 02465
Phone: 617-969-0268
Marlborough office:
331 Boston Post Rd East,
Marlborough, MA 01752
Phone: 508-251-2576
预约和check-in时... 阅读全帖 |
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v*******n
发帖数: 609 | 34 而且有教学经验，欢迎报名来Gifted Education的Super Saturday当老师。时间是10月
3日开始的六个周六的上午9点到12点。
由于国际学生每周工作不能超过20个小时，所以如果你有.5的assistantship就没法再
额外工作了。目前只有以下几门课需要老师：
1. Mini Med (Grades 3-4)
2. Mechanical Engineering (Grades 3-4)
3. Spherical Journeys (Grades 3-4)
4. Phenomenal Physics (Grades 3-4)
5. Robotics (Grades 7-8)
6. Entrepreneurship (Grades 7-8)
课程介绍请参见：http://www.geri.education.purdue.edu/youth_programs/Super_Saturday.html
对于第一次在我们项目的老师，这六次课的报酬是$435。有意者请email我：yang83@
purdue.edu |
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b*******r
发帖数: 432 | 35 Fritz Zwicky, 就是最早提出宇宙中可能存在"暗物质"(dark matter,
黑洞应该就算暗物质的一种吧)假设的人, 骂他的同事时用了这么一个词:
"spherical bastard", 意思就是 that guy is a bastard no matter
what direction u look at him... 太富于创造性了. hoho. |
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s**********o
发帖数: 14359 | 36 亏你还是学生物的，POLLEN那么小，口罩等于白带过多
Pollen is produced in the 'microsporangium' (contained in the anther of an
angiosperm flower, male cone of a coniferous plant, or male cone of other
seed plants). Pollen grains come in a wide variety of shapes (most often
spherical), sizes, and surface markings characteristic of the species (see
electron micrograph, right). Pollen grains of pines, firs, and spruces are
winged. The smallest pollen grain, that of the forget-me-not (Myosotis spp.)
, is around 6 µm ... 阅读全帖 |
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s*********5
发帖数: 5637 | 37 突然好想去看牛郎 （Altair），织女星（Vega)，和爱人手牵手体会一下kitty形容的
被丝绒般的星空包围的感觉。去年LG和他姐姐去了Bryce Canyon NP,看到美丽的银河和
满天繁星，可惜我没有去。（见附图）上个周末朋友去Lake Cuyamaca露营看流星，我
也没法成行。。。
明晚去哪里看鹊桥相会呢？
---------------------
http://blog.sina.com.cn/s/blog_6ad5d7b001019h71.html
Altair (Alpha Aquilae, Alpha Aql, α Aquilae, α Aql, Atair) is the
brightest star in the constellation Aquila and the twelfth brightest star in
the night sky. It is an A-type main sequence star with an apparent visual
magnitude of 0.77 and is one of the vertices o... 阅读全帖 |
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c****e
发帖数: 2097 | 38
GIME A FUCKING BREAK. WOULD RATHER DIE THAN BECOME ONE OF THOSE OBESE
UNDERLINGS. WHAT THE
FUCK IS WRONG WITH PEOPLE'S MINDS. GO FEED YOURSELF INTO A SPHERICAL COW. |
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b****a
发帖数: 300 | 39 1. The Bounce
Before even beginning the testing of the ball I performed a bounce test to
compare the bounce of the DHS 3 star plastic ball to the Butterfly 3 Star
Celluloid ball. The plastic ball has a lower bounce peak and is less
responsive on the table surface, this is because of the slightly larger size
of the new ball and also it's plastic material composition.
2. The Shape/Roundness
I also did a spin test with both balls. With the prototype plastic balls
there were a lot of issues with how... 阅读全帖 |
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m***h
发帖数: 23691 | 40 Smith 的 Phenomenon spherical series. 雪场有啥买啥没得挑 |
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P******t
发帖数: 1717 | 41 不用争，显然第一运动是足球，可能只有玩儿篮球的想当然以为篮球第一运动
http://en.wikipedia.org/wiki/Association_football#cite_note-0
Association football, more commonly known as football or soccer (etymology),
is a team sport played between two teams of eleven players using a
spherical ball. It is widely considered to be the most popular sport in the
world.[1][2][3]
1. Guttman, Allen. "The Diffusion of Sports and the Problem of Cultural
Imperialism" in Eric Dunning, Joseph A. Maguire, Robert E. Pearton. The
Sports Process: A Compa |
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s******n
发帖数: 2279 | 42 There are 11 reasons that football is better than football.
Or, football is better than American football. Or, even still, Soccer is
better than American football. Why 11? Well, that’s an odd, obscure, uneven
number. And there are 11 men on a soccer pitch.
1. The Name Makes SenseIn football, they actually use their foot to kick a
ball.
By now you’ve all seen the ‘football – Handegg’ picture (and if you
haven’t, I’ve included it reference). There isn’t really much more that
needs to be said is th... 阅读全帖 |
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p**s
发帖数: 788 | 43 Silja渡轮17:00离开，第二天09:30抵达斯德哥尔摩。
有点cruise的意思，不过除了看show不用钱，其他都得付费。晚饭自助餐虽然价格不菲
，但品种还算丰富，酒精饮料随便喝。按北欧/瑞典的物价来计，非常合算。
进入Stockholm，得穿过Stockholm archipelago无数的岛屿。
停泊码头在外围的Värtahamnen。来之前已经买好两天的Stockholm Card。虽然两
大一小要200多美金，但非常值(还是那句'按北欧/瑞典的物价来计')。
这两晚旅馆是Skeppsholmen岛上的STF af Chapman Hostel。'按北欧/瑞典的物价来计'
， 这个青旅可以说'地'美价廉。
在Skeppsholmen上看Gamla stan(旧城) 。
StrandvagenWaterfront from Skeppsholmen。绝对豪宅。
从af Chapman走到斯德哥爾摩市政廳大概20分钟。
金殿
议政厅。天花板模拟viking船upside down是一绝。
诺贝尔奖晚宴的大堂?
Stockholm City Hall。
从City Ha... 阅读全帖 |
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l******n
发帖数: 11737 | 44 The China Hi-Tech Fair is taking place in Shenzhen this week, and among the
gadgetry being shown to attendees is a Kinect-like motion sensing unit built
for games called the i-dong.
Developed by Taishan Online Technology Co Ltd., the i-dong (as reported by
Tech-On!) is not a new console but, rather, a peripheral that can be used
with other devices, such as PCs and set-top boxes.
i-dong comes in two parts: a thin black sensor unit with a camera and IR
lights (imagine something directly in-between... 阅读全帖 |
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I**********s
发帖数: 441 | 45 这是不太准确的部分. astrophysicist Neil deGrasse Tyson, astronomer and
skeptic Phil Plait, and veteran NASA astronaut and spacewalker Scott E.
Parazynski have offered comments about some of the most "glaring"
inaccuracies.Examples of such mistakes include:
The "momentum" that caused Clooney to cut his line makes no sense because he
and Bullock are stationary with respect to the space vehicle (nor is there
any propulsive force)
The Hubble Space Telescope (HST), which is being repaired at the
beginning... 阅读全帖 |
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d*****0
发帖数: 68029 | 46 丐友们可以参考一下。
18mm
K18/3.5 is an excellent rectilinear lens; it is quite large and bulky though
. It's correction of spherical and coma aberrations seems far better than
that of A20/2.8, and it is surprisingly sharp edge to edge. Its coma wings
are also smaller than those of K24/2.8, K28/2, or K30/2.8. Yoshihiko
Takinami also notes that the corner resolution of K18/3.5 is higher than
that of A20/2.8, and the only defect of K18/3.5 seems to be the lack of
normal or UV filter though it has four filte |
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x****c
发帖数: 25662 | 47 ☆─────────────────────────────────────☆
daye520 (打入老鼠会中层) 于 (Sun May 23 16:03:15 2010, 美东) 提到:
丐友们可以参考一下。
18mm
K18/3.5 is an excellent rectilinear lens; it is quite large and bulky though
. It's correction of spherical and coma aberrations seems far better than
that of A20/2.8, and it is surprisingly sharp edge to edge. Its coma wings
are also smaller than those of K24/2.8, K28/2, or K30/2.8. Yoshihiko
Takinami also notes that the corner resolution of K18/3.5 is higher than
that of A20/2.8, |
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a***n
发帖数: 1500 | 48 could be residual spherical aberrations, technically that is..
焦，
，安
申请 |
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f**********c
发帖数: 651 | 49 据说这是好镜头的表现， quoted from ll:
Those "tiny black specks" are what you get when the lens is an odd number
of half-wavelengths out of focus. Note how both the foreground and
background point sources gradually show an increasing pattern of light and
dark rings - and more critically, how these ring patterns exhibit
identical shapes and intensities at a given degree of defocus in front of
and behind the plane of sharp focus? That beautiful symmetry, between
inside and outside focus, is a sign of near-pe... 阅读全帖 |
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c********y
发帖数: 30813 | 50 quote:
"That is already insanely good, but the camera then applies an aperture-
specific focus correction to account for focus shift. The Hexar's lens is
optimized for wide-open operation; its spherical aberration causes the focus
point to shift as the apertures get smaller. The Hexar calculates this
error and corrects as its goes. Too bad AF SLRs don't have this feature."
http://www.dantestella.com/technical/hexar.html
DOWN |
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