Quod Erat Demonstrandum

2011/02/16

[FW] Waterfall

Filed under: Fun — johnmayhk @ 11:45 下午

永動機?應只是角度問題,但還是很有趣:

1 則迴響 »

  1. It looks like a Penrose Stairs.
    http://en.wikipedia.org/wiki/Penrose_stairs

    迴響 由 Justin — 2011/02/17 @ 1:33 上午 | 回覆


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