Sunday, December 11, 2011

More illusions

 old or young woman? 
Is this woman old...or young?
这是一位老妇人还是一位少女?


Moving circles

Focus on the dot in the center,
and move your head forwards and backwards.
What happens?
把你的注意力放在中间的黑点,
然后向前再向后移动。
你看到了什么?



looking up, or looking down
Looking up, or looking down?
往上看,还是往下望?

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