Luminiferous Æther

According to wikipedia, color blindness occurs in about 8% of men. Contrary to the popular conception, it does not mean that a man sees gray, but rather that he can’t tell the difference between some colors (most commonly red and green).

What does the world look like with this condition? Paul Martin at critiquewall.com has posted an article showing some photoshopped images of vision through color blindness.

[Click here to see through color blind eyes]

One of the best radio shows currently running, Radiolab, recently did an episode on laughter. In addition to the apocryphal-sounding Tanganyika Laughter Epidemic, the show also covered the debatable existence of laughter in non-human animals. Apparently, there is a scientist who tickles rats for a living. Are the rats laughing? You be the judge.

[Click here to see rats getting tickled]

[Click here for the Radiolab episode on laughter]

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Header photograph by Jenny Huang