A scientist inadvertently found a cure for colorblindness.  The result is what appear to be ordinary sunglasses, but they sell for about $400. There is now on YouTube a plethora of videos recording the big moment when victims of colorblindness put on these glasses for the first time.  Many people weep.  Some stare off at the sky as if having a religious vision.  Some say, "No way" or "Oh, my God."  A young man told his wife: "I've got a whole new woman here!" One common reaction is a single stunned syllable: "Wow!" This word suggests so much feeling.  People see something they've never seen before, and clearly, life won't be the same again. Think back to your own educational moments that were emotional and memorable: a planetarium's starry sky, a whale sounding, the New York City subway, a famous waterfall, a flower blooming in fast motion, an amoeba...(Read Full Article)