梅花間竹 2

這段改篇自 2010 年 3 月 18 日的對話。

「梅花間竹」有什麼好處呢?

如果「第一件事做極也做不完,導致第二件事遲遲不能開始」的話,你起碼會有兩方面的麻煩。

第一,正如剛才所說,即使第二件事可以開始,也只剩下極少的時間,令到你只能草草了事。

第二,「第二件事遲遲不能開始」,導致你在做第一件事時,時刻擔心「究竟最後有沒有時間完成第二件事?」和「如果沒有時間做第二件事,那我怎樣向上司交代?」等。因為你一路做第一件事,一路擔心另一件事,你第一件事的工作質素一定不會好。

「梅花間竹」不但可以化解這兩個問題,而且還有其他的大好處:

第三,即使到最後,你也不能百分百完成那兩件事情,你通常也可以把它們各自完成了八成(80%)左右,不會有「其中一件事『未能開始』或者『只能草草了事』」的情形。

30 minutes Task A
30 minutes Task B
30 minutes Task A
30 minutes Task B
30 minutes Task A
30 minutes Task B

第四,如果事情 A 和事情 B 的其中一項是厭惡工作的話,「梅花間竹」有助減輕厭惡。即使在「 A 和 B 也是厭惡工作」的情況下,「梅花間竹」都有助減輕厭惡,因為至少你毋須長時間無間斷對著同一件事。

— Me@2010.07.25

2010.07.25 Sunday (c) All rights reserved by ACHK

T-duality

Type IIA and Type IIB

The Type IIA string theory and the Type IIB string theory were known to be connected by T-duality; this essentially meant that the IIA string theory description of a circle of radius R is exactly the same as the IIB description of a circle of radius 1/R, where distances are measured in units of the Planck length.

— Wikipedia on M-theory

2010.07.24 Saturday ACHK

Bo Peep

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Bo Peep does not appear in Toy Story 3. It is implied that sometime between the events of Toy Story 2 and Toy Story 3, Bo was sold in a yard sale with her Sheep. The only toy to mention her was Rex when the remaining toys remember their friends who are no longer with them. When Rex says her name, it is apparent that Woody is still saddened and hurt over her loss. However, she appears only as a background toy in archive footage at the beginning of the film during a home video montage of Andy as a child.

— Wikipedia on List of Toy Story characters

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2010.07.24 Saturday ACHK

轉捩點

神來之筆 2

種子論 4

有時,我會無意中改變了別人的一生。

但是,事前我不會刻意地想:「我要做某些好事來改變別人一生。」,

因為那會給我自己一些不必要的額外壓力,反而會阻礙我工作的進度。

我只能「盡其在我」:盡力做好上天給我的工作(天職)。

到最後,我改變了誰,改變不了誰,並不是由我話事,而是由 the Light(神明)決定。

謀事在人,成事在天也。

— Me@2010.07.21

2010.07.24 Saturday (c) All rights reserved by ACHK

Matrix string theory 2

In physics, M(atrix) theory (also known as BFSS-Matrix theory) is a fundamental formulation of M-theory as a Random matrix model. It is written in terms of interacting D0-branes (zero-dimensional Dirichlet branes) in infinite momentum frame. It was proposed by Banks, Fischler, Shenker, and Susskind in 1996. See also the discussion in M-theory.

Matrix String Theory

Matrix string theory is a set of equations that describe superstring theory in a non-perturbative framework. Matrix string theory is related to M(atrix) theory in the same sense that superstring theory is related to M-theory. Type IIA string theory can be shown to be equivalent to a maximally supersymmetric two-dimensional gauge theory, the gauge group of which is U(N) for a large value of N. This Matrix string theory was first proposed by Lubos Motl in 1997 and later independently in a more complete paper by Robbert Dijkgraaf, Erik Verlinde, and Herman Verlinde. Another matrix string theory equivalent to Type IIB string theory was constructed in 1996 by Ishibashi, Kawai, Kitazawa and Tsuchiya. This version is known as the IKKT matrix model.

— Wikipedia on Matrix string theory

2010.07.23 Friday ACHK

Dog 2

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Intellect is invisible to the man who has none.

— Arthur Schopenhauer

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Kindness is invisible to the man who has none.

— Me@2010.07.22

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If you pick up a starving dog and make him prosperous, he will not bite you. This is the principal difference between a dog and a man.

— Mark Twain

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2010.07.23 Friday copyright ACHK

梅花間竹

這段改篇自 2010 年 3 月 18 日的對話。

假設,你有兩樣重要的事情要做:A 和 B。

如果 A 和 B 各自本身都需要長時間的話,那你就千萬不要企圖先百分百完成其中一件事,才開始做另一件事,因為通常第一件事會做極也做不完,導致第二件事遲遲不能開始。即使第二件事可以開始,也只剩下極少的時間,令到你只能草草了事。

那你應該怎樣編排時間呢?

你可以試試用「梅花間竹」方法,把事情 A 和事情 B 不斷循環:

1 hour Task A
1 hour Task B
1 hour Task A
1 hour Task B
1 hour Task A
1 hour Task B

視乎實際處境,根據上文下理,一格時間可以是 30 分鐘、1 小時、1 天 或 3 個月 等等,沒有一定的限制。

「梅花間竹」有什麼好處呢?

— Me@2010.07.22

2010.07.23 Friday (c) All rights reserved by ACHK

Hadron

In particle physics, a hadron (pronounced /?hadr?n/, from the Greek: ?δρ??, hadros, “stout, thick”) is a composite particle made of quarks held together by the strong force (similarly to how atoms and molecules are held together by the electromagnetic force). Hadrons are categorized into two families: baryons (made of three quarks), and mesons (made of one quark and one antiquark).

Note that the mass of a hadron has very little to do with the mass of its valence quarks; rather, due to mass–energy equivalence, most of the mass comes from the large amount of energy associated with the strong interaction.

— Wikipedia on Hadron

2010.07.22 Thursday ACHK

Buddha

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Buddha

= the enlightened one

= 開悟的人

— Me@2010.07.22

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Buddha is the one who has realized that he already has (almost) everything he wants.

— Me@2007

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2010.07.22 Thursday copyright ACHK

傳世之作 2

網誌時代 5

反白論前傳:知音篇

我很用心寫我的文章。但是,卻沒有多少人懂得欣賞。

(安:根據「Dilbert test」,如果一般人也有足夠程度,欣賞你的文章的話,你的文章大概不會是超凡的文章。相反,絕大部人也不懂欣賞的話,你的文章就有可能是傳世之作。)

… 或者是垃圾作品。

— Me@2010.07.20

Intellect is invisible to the man who has none.

— Arthur Schopenhauer

To be great is to be misunderstood.

— Ralph Emerson

2010.07.22 Thursday (c) All rights reserved by ACHK

Dilbert test

反白論前傳:呆伯特篇

Dogbert: All great ideas look like bad ideas to people who are losers. It’s always good to test a new idea with known losers to make sure they don’t like it.

— Me@2010.07.21

2010.07.21 Wednesday ACHK

M-theory 3

In late 2007, Bagger and Lambert set off renewed interest in M-theory with the discovery of a candidate Lagrangian description of coincident M2-branes, based on a non-associative generalization of Lie Algebra, Nambu 3-algebra or Filippov 3-algebra. Practitioners hope the Bagger-Lambert-Gustavsson action will provide the long-sought microscopic description of M-theory.

— Wikipedia on M-theory

2010.07.20 Tuesday ACHK

縱波橫波化 4

這段改篇自 2010 年 3 月 18 日的對話。

波動本身
the wave itself

位移 – 距離 圖
displacement-distance graph

把一個 longitudinal wave(縱波)所對應的 displacement-distance graph(位移 – 距離 圖)畫了出來後,你就可以在「位移 – 距離 圖」中,畫一個新的 wave(波動)形狀。如果是那個 longitudinal wave 是向右走的話,你就在「位移 – 距離 圖」中,原本的 wave 右手旁邊,用虛線畫一個新的 wave。

位移 – 距離 圖
displacement-distance graph

比較原本的 wave 和新 wave,你就可以知道在這一刻,在「位移 – 距離 圖」中,粒子 A 是向上移動的。「向上」移動,就即是「向正方向」移動。「正方向」在原本的 longitudinal wave 中,就即是「右面」。

波動本身
the wave itself

換句話說,在這一刻,粒子 A 是向右移動的。

— Me@2010.07.20

2010.07.20 Tuesday (c) All rights reserved by ACHK

Open strings and closed strings

Superstring theory 4

String theory includes both open strings, which have two distinct endpoints, and closed strings making a complete loop. The two types of string behave in slightly different ways, yielding two different spectra. For example, in most string theories, one of the closed string modes is the graviton, and one of the open string modes is the photon. Because the two ends of an open string can always meet and connect, forming a closed string, there are no string theories without closed strings.

— Wikipedia on String theory

2010.07.19 Monday ACHK

個人大組織 6

馬克吐溫(Mark Twain)曾經講過:「如果你假設世人都是瘋狂的話,你會發現,世間上很多原本不能解釋的事情,都可以解釋到。」

你聽過這一句沒有?

(安:你以前用「即時通訊軟件」(Instant Messaging)傳送過給我。)

是不是「地球表面,是一間精神病院」的那一篇?

這一句不只可以解釋到「很多」現象,而且可以「絕大部分」的現象。所以,我覺得這一句真是威力驚人。

(安:你的意思是,「人是瘋狂的怪獸」這一句,比「人是理性的動物」有更大的解釋力?)

無錯。

(安:「人是理性的動物」都有解釋能力,但是它只能解釋到小部分的現象。而「人是瘋狂的怪獸」卻能解釋到大部分的現象。)

— Me@2010.07.19

相關條目:

地球 2

2010.07.19 Monday (c) All rights reserved by ACHK