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A party trick when the wine is flowing.
HOW TO DO THE TRICK
Explain that just as a glass prism splits up the different colors of white light, when different colored light passes through glass, it is also affected to an extent that depends on its color.
Write the words CARBON DIOXIDE on a piece of paper, CARBON in red and DIOXIDE in blue. Put the paper close behind the stem of a wine glass, and look at the words through the stem. The red letters turn upside down, but the blue ones don't.
So is the glass affecting the red light more than the blue?
聚会上的小把戏
说明：首先要解释一番，就如白光通过三棱镜会分离出不同颜色一样，带颜色的光透过玻璃也会这样。接着在一张白纸上写上“CARBON DIOXIDE”“CARBON”用红色写，“DIOXIDE”用蓝色写。透过高脚杯的杯子干看这两个单词，会发现“CARBON”倒过来了，而“DIOXIDE”却没有，所以，红色的光更容易受到玻璃的影响，对吗？
A good trick to try on a group of drunken scientists.
事实上，这个把戏的关键就在于，红色的也好蓝色的也罢，穿透玻璃的还是白光，而不是带有颜色的光，不过这个小把戏倒是可以骗骗喝多了的科学家们。
