# Total Football

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“Total Football” is the label given to an influential tactical theory of association football in which any outfield player can take over the role of any other player in a team (save the goalkeeper). It was pioneered by Dutch football club Ajax from 1969 to 1973, and further used by the Netherlands National Football Team in the 1974 FIFA World Cup. It was invented by Rinus Michels, a famous Dutch football trainer/coach (who was the coach of both Ajax and the Netherlands national team at the time).

In Total Football, a player who moves out of his position is replaced by another from his team, thus retaining the team’s intended organizational structure. In this fluid system, no player is fixed in his nominal role; anyone can be successively an attacker, a midfielder and a defender. The only player fixed in his nominal position is the goalkeeper.

Total Football’s tactical success depends largely on the adaptability of each footballer within the team, in particular his ability to quickly switch positions depending on the on-field situation. The theory requires players to be comfortable in multiple positions; hence, it places high technical and physical demands on them.

— Wikipedia on Total Football

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2010.06.30 Wednesday $ACHK$

# 人格堤壩

「不能說真話」並不代表「需要說假話」，因為你可選擇「既不說真話，又不說假話」。方法有很多，例如：

1. 不說話；

2. 說廢話；

3. 說模稜兩可的話；

4. 逃走；

5. etc.

— Me@2010.06.30

# Superstring theory

It wasn’t clear how relevant this is to the physics of our particular universe, but at the end of the talk Dijkgraaf urged us not to worry about that too much: after all, the math is so pretty in its own right. Insofar as I’m a physicist this makes me unhappy – but in my other persona, as a mathematician, it makes sense.

— John Baez

2010.06.29 Tuesday ACHK

# 偉大o既藝術家

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— 黃子華

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2010.06.29 Tuesday $ACHK$

# 選圖問題 2

Choosing a graph 2 | 多項選擇題 2.2 | Multiple Choices 2.2 | 1991-CE-PHY II-7 a

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constant net force –> constant acceleration –> kinematic equations

— Me@2010.06.29

— Me@2019.02.05

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# Cosmic string

String theory and cosmic strings

There is no direct connection between string theory and the theory of cosmic strings (the names were chosen independently by analogy with ordinary string).

However, work in string theory revived interest in cosmic strings in the early 2000s. In 2002 Henry Tye and collaborators observed the production of cosmic strings during the last stages of brane inflation. It was also pointed out by string theorist Joseph Polchinski that the expanding Universe could have stretched a “fundamental” string (the sort which superstring theory considers) until it was of intergalactic size. Such a stretched string would exhibit many of the properties of the old “cosmic” string variety, making the older calculations useful again. Furthermore, modern superstring theories offer other objects which could feasibly resemble cosmic strings, such as highly elongated one-dimensional D-branes (known as “D-strings”). As theorist Tom Kibble remarks, “string theory cosmologists have discovered cosmic strings lurking everywhere in the undergrowth”. Older proposals for detecting cosmic strings could now be used to investigate superstring theory.

— Wikipedia on Cosmic string

2010.06.28 Monday ACHK

# Isaac Newton

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To do really great things, you have to seek out questions people didn’t even realize were questions.

You only get one life. Why not do something huge?

And you know more are out there, separated from us by what will later seem a surprisingly thin wall of laziness and stupidity.

— Paul Graham

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2010.06.28 Monday $ACHK$

# 專利

「專利制度」表面上，主要是為了保障新產品發明者的利益而設的。那是大眾的誤解。實情是，「專利制度」的存在，主要是為了社會的整體利益。文明社會確立「專利制度」，是「兩害取其輕」的結果。

— Me@2010.06.28

# Fourth dimension

Visual scope

Being three-dimensional, we are only able to see the world with our eyes in two dimensions. A four-dimensional being would be able to see the world in three dimensions. For example, it would be able to see all six sides of an opaque box simultaneously, and in fact, what is inside the box at the same time, just as we can see the interior of a square on a piece of paper. It would be able to see all points in 3-dimensional space simultaneously, including the inner structure of solid objects and things obscured from our three-dimensional viewpoint.

— Wikipedia on Fourth dimension

2010.06.27 Sunday ACHK

# Pragmatic Idealism 3

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Be an ideal pragmatist and
a pragmatic idealist.

— Me@2001.12.05   <– 2001, not 2010

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2010.06.27 Sunday $copyright ACHK$

Choosing a graph

1990-CE-PHY II-1

1990-CE-PHY II-4

1990-CE-PHY II-8

1991-CE-PHY II-3

1991-CE-PHY II-7

1992-CE-PHY II-1

1993-CE-PHY II-5

1994-CE-PHY II-9

1995-CE-PHY II-4

1996-CE-PHY II-4

2000-CE-PHY II-7

2000-CE-PHY II-9

2001-CE-PHY II-7

2002-CE-PHY II-3

2002-CE-PHY II-8

— Me@2010.06.27

# Anti de Sitter space

Some of the differences between the familiar Newtonian equation of gravity and the predictions of general relativity flow from the fact that gravity in general relativity bends both time and space, not just space. In normal circumstances, gravity bends time so slightly that the difference between Newtonian gravity and general relativity that results is so slight that it is impossible to detect without scientific instruments.

— Wikipedia on Anti de Sitter space

2010.06.26 Saturday ACHK

# 魔間傳奇 3

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I’m the last survivor of a dead culture. And I don’t really belong in the world anymore. And in some ways I feel I ought to be dead. I have certainly wished I had killed myself when I was born.

In terms of effect on the world, it’s very good that I’ve lived. And so I guess, if I could go back in time and prevent my birth, I wouldn’t do it. But I sure wish I hadn’t had so much pain.

— Richard Stallman, inventor of the Copyleft

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2010.06.26 Saturday $ACHK$

# 傳世之作

— Me@2010.06.25

Words differently arranged have a different meaning, and meanings differently arranged have a different effect.

— Blaise Pascal

# The Phone Book

In physics, Gravitation is a very important reference book on Einstein’s theory of gravity by Charles W. Misner, Kip S. Thorne, and John Archibald Wheeler. Often considered the “Bible” of General Relativity by researchers for its prominence, it is frequently called MTW after its authors’ initials, or “the Phone Book” due to its immense size. It was published by W.H. Freeman and Company in 1973. The book, a massive tome of over 1200 pages, covers many aspects of the General Theory of Relativity and also considers some extensions and experimental confirmation. The book is divided into two “tracks”, the second of which covers more advanced topics for more capable or determined students. MTW uses the -+++ metric convention. The book is famous/infamous for its use of boxes to add supplementary substance to the already thorough main text.

* Misner, Charles W.; Thorne, Kip S.; Wheeler, John Archibald (1973-09-15 1973), Gravitation, San Francisco: W. H. Freeman, ISBN 978-0-7167-0344-0

— Wikipedia on Gravitation (book)

2010.06.25 Friday ACHK

# Being right

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Inactivity as intelligent

* We don’t get paid for activity, just for being right. As to how long we’ll wait, we’ll wait indefinitely.

o 1998 Berkshire Hathaway Annual Meeting

— Warren Buffett

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2010.06.25 Friday $ACHK$

# 間時間表（前傳）

Half an Hour 2.5

Timetable for high school study 10.4

 Monday Tuesday Wednesday Thursday Friday 3 hours Physics Applied Maths Pure Maths Physics Applied Maths 1 hour Chinese English Chinese English Chinese 1 hour 3 hours Pure Maths Physics Applied Maths Pure Maths Physics

 3 hours Physics

 30 minutes Physics 30 minutes Physics 30 minutes Physics 30 minutes Physics 30 minutes Physics 30 minutes Physics

 30 minutes 去洗手間 30 minutes 去廚房 30 minutes 接電話 30 minutes 執拾房間 30 minutes 內疚 30 minutes 傷心

（LWT etc：哈哈 … ）

 30 minutes Physics 30 minutes Physics 30 minutes Physics 30 minutes Physics 30 minutes Physics 30 minutes Physics

 30 minutes Physics 5 minutes 30 minutes Physics 5 minutes 30 minutes Physics 5 minutes 30 minutes Physics 5 minutes 30 minutes Physics 5 minutes 30 minutes Physics

— Me@2010.06.24

# Aprioricity, necessity, and analyticity

Thus, the relationship between aprioricity, necessity, and analyticity is not easy to discern. However, most philosophers at least seem to agree that while the various distinctions may overlap, the notions are clearly not identical: the a priori/a posteriori distinction is epistemological, the analytic/synthetic distinction is linguistic, and the necessary/contingent distinction is metaphysical.

— Wikipedia on A priori and a posteriori

2010.06.24 Thursday ACHK

# 英雄

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— Me@2010.02.20

— Me@2010.06.24

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2010.06.24 Thursday $copyright ACHK$