In nonlinear optics, the superposition principle no longer holds.
— Wikipedia on Nonlinear optics
2009.11.25 Wednesday ACHK
Daily Archives: November 25, 2009
醫者 2
能醫不自醫
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諾貝爾不會拿諾貝爾獎.
— Me@2009.11.17
醫生不能幫自己做手術.
— My brother
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2009.11.25 Wednesday
Physics Town 