Electron

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

Imaginary Time

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

Major and Minor 2

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Diligent + Lazy = Effective

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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 copyright ACHK

香港

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 ACHK

S-matrix

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

Stand-up comedy

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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 ACHK

Major and Minor

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Diligent + Lazy = Effective

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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 copyright ACHK