悉尼唐人街有个帝王饼， 就是这种机器做的， 味道不错。。。每次经过都要买几个。
测试贴。
![matthen:
The smooth motion of rotating circles can be used to build up any repeating curve even one as angular as a digital square wave. Each circle spins at a multiple of a fundamental frequency, and a method called Fourier analysis shows how to pick the radiuses of the circles to make the picture work. Decomposing signals like this lies at the heart of a lot of signal processing. [more] [code]](http://25.media.tumblr.com/dc2b4d5c066cbd9f6022d8427fe58d8c/tumblr_mhlswzuNIY1qfg7o3o1_r1_400.gif)
The smooth motion of rotating circles can be used to build up any repeating curve even one as angular as a digital square wave. Each circle spins at a multiple of a fundamental frequency, and a method called Fourier analysis shows how to pick the radiuses of the circles to make the picture work. Decomposing signals like this lies at the heart of a lot of signal processing. [more] [code]
We made a looping Looper gif poster.
