Flying

wing over cloud
Originally uploaded by aperture-lcf

interested?

Originally uploaded by aperture-lcf

静 - Stability

正值午夜十二时。

街上没灯，路上没人。只有风。微风，无声无息的那一种。

夜，特别静。静得有点寒，有点凉。就连他妈养的那只杂种小花猫也没凄凄地春叫。记得它上几个月还叫的特来劲。也对，不管杂种纯种，任凭它有大火燎原的热情也被这该死的寒冬给浇熄。更何况它还是一只快到中年的猫，而且还是杂种。（虽然纯种猫不见得就特会叫春。还有，这篇文章的主旨不是关于叫春的本事，所以此事就此搁下。）

在这么静的夜里，做什么最好呢？

做爱？（开玩笑，没搭档！）当然是思考。李亞普諾夫（Aleksandr Lyapunov）伟大的稳定性原理或许就是长期在这种静夜里酝酿出来的。

我不是俄国人，不懂力学，不懂数学，更不是李亞普諾夫本人。所以我不懂得在夜里思考。别开玩笑了，这么美好的静夜哪可以浪费在思考无聊的问题上？

所以，我选择笑。大笑。开怀地笑，豪放地笑，疯狂地笑，而且最重要的是 - 忘我地笑。

然后，寒冷的空气中充满了忘我而且热情的笑声，使湿气结成露水。难道你觉得世人除了笑还需要别的什么吗？可是活在世上，往往事与愿违。当我觉得笑是最重要的时候，别人同时认为睡眠更为重要。

他们，采取了行动。

And I have no choice, but to stand in the submission role.

The world is tranquil as it might seem. But mind you, it is full of conflicts. Many individuals and groups may be allies at one time, and in the next moment, foes to each other.

Everything is constantly changing, evolving in a dimension we call `time'. Perhaps, most happenings are altering around a small neighbourhood, with the same thing repeating itself, only possessing a different value in the time-axis. And Lyapunov thought that this kind of evolution was stable. Why not? Things don't explode as often as you might wish them to.

Therefore, to avoid this essay to explode itself, let's allow the character count settles. Let it converges to a number and stops.

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导引：

文章中心思想不明，文字造诣粗浅，内容通俗愚昧，不值一览。

《周易·系辞下》有云：“穷则变，变则通，通则久”。作者企图通过文章内容的跳跃，语言的转变来表现出世事变换无穷的表态。然而，文章的起始与结尾，甚至是标题都围绕着“静”与“定”的概念。从这之中的可体现出“动”与 “静”，“变”与“久”的耐人寻味之关系。

Doing a high school maths problem with university notation

Problem: Determine the dimensions of the cylindrical can with volume v₀ and minimum surface (so that we can minimise material cost).

Solution:


So, here comes the interesting question: is a real can really made up of those dimensions?


And the answer is no. This is probably due to the existence of other constraints, such as the strength of can, manufacturing considerations and aesthetics factors.

Expand (x+2)^2

One day, a teacher asked students the following question in a test:

Expand (x+2)^2.

A student gave the following answer:

(x+2)^2
= (x_+_2)^2
= (x_____+_____2)_^_2
= (x__________+__________2)__^__2

note: _ means space; ^ means `to the power of'