#77 Brownian Carnot engine-I 微觀卡諾引擎-I on January 26, 2017 Carnot engine classical mechanics Hamiltonian thermodynamics +
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#55 Fundamentals--Farunhofer Diffraction-II 常識集_夫朗和斐繞射_中 on June 23, 2016 Dirac delta function Fraunhofer diffraction Fresnel approximation impulse response optics +