In condensed matter physics, the spin–charge separation is an unusual behavior of electrons in some materials under some special conditions that allows the electrons to behave as a bound state of two independent particles, the spinon and the holon.
— Wikipedia on Spin–charge separation
2009.10.31 Saturday ACHK
Something 2
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You might know someone but not understand her.
You might understand someone but not feel as she does.
— Me@2009.10.28
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2009.10.31 Saturday
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大部分的人生伏線, 也是NG鏡頭.
— Me@2009.09.21
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2009.10.30 Friday
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壞人不會覺得自己是壞人, 因為牠們的道德標準很低, 很容易遵守.
好人會覺得自己千瘡百孔, 因為他們的道德標準很高, 很容易觸犯.
— Me@2009.09.21
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2009.10.28 Wednesday
Finally by using a Wick rotation one can show that the Euclidean quantum field theory in (D + 1)-dimensional spacetime is nothing but quantum statistical mechanics in D-dimensional space.
— Wikipedia on Imaginary Time
2009.10.27 Tuesday (c) ACHK
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亞爺替我算命.
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說我下年
或是結婚,
或是離開香港.
二擇其一.
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最好兩件事同時發生.
2009.10.27 Monday
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Life is a never-ending series of public exams.
— Me@2009.10.24
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2009.10.26 Monday
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The way to get a difficult thing done is to turn it into a habit.
How difficult can it be if it is just a habit?
— Me@2009.10.23
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2009.10.25 Sunday
Computational Physics does not mean “numerical”!
— Prof. Hai-Qing Lin
2009.10.24 Friday (c) ACHK
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A confident face is a beautiful face.
— Me@2009.10.05
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2009.10.24 Saturday
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Extraordinary performance requires extraordinary confidence, extraordinary diligence and extraordinary laziness.
— Me@2009.10.20
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2009.10.23 Friday
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Major in major things + Minor in minor things = Effecive
Major in major things + Major in minor things = Ineffective
Minor in major things + Minor in minor things = Useless
Minor in major things + Major in minor things = Destructive
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— Me@2009.10.14
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2009.10.22 Thursday
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Do not fear your fear,
for the greater your fear, the greater your courage.
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Your fear is your courage.
— Me@2009.10.20
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2009.10.21 Wednesday
Hong Kong’s Republic of China
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(明報)2009年10月17日
大陸方面今次考慮以全國政協為平台，推進兩岸共同紀念辛亥革命100周年，是有意迴避兩岸中央和地方正統之爭，1940年代國共談判時平台即是政協（舊政協）。
消息稱，大陸方面希望首先實現「胡馬會」，藉辛亥革命100周年之際，兩岸最高領導人共同參加紀念儀式，實現非正式會晤，地點可選擇辛亥革命發源地武漢，至於正式會談地點，則可能選擇香港。
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2009.10.19 Monday
In physics, the scattering matrix (or S-matrix) relates the initial state and the final state for an interaction of particles.
— Wikipedia on S-matrix
2009.10.18 Sunday (c) ACHK
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Physics 連接天界與人間.
— Me@2009.10.17
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.2009.10.18 Sunday
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You might know something but not understand it.
You might understand something but not feel it.
— Me@2009.10.05
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2009.10.17 Saturday
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* Teaching is Like Acting – you’re standing up there on stage making us watch you: you’d better be worth it. The closest professions to teaching are stage acting and stand-up comedy. Learn how they do it.
— John Baez, January 23, 2006
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2009.10.16 Friday
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Diligent on the relevant things + Lazy on the irrelevent things = Effecive
Diligent on the relevant things + Diligent on the irrelevent things = Ineffective
Lazy on the relevant things + Lazy on the irrelevent things = Useless
Diligent on the irrelevant things + Lazy on the relevent things = Destructive
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— Me@2009.10.14
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2009.10.15 Thursday
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Say things in series, not in parallel. It is the key for teaching.
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Do things in series, not in parallel. It is the key for psychological health.
— Me@2009.10.13
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2009.10.14 Wednesday
Physics Town 
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