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Uploaded on Aug 9, 2011
In this episode of O Wow Moments featuring Mr. O from the Children's Museum of Houston, we play a little game called "Guess That Smell!" where we explore how our sense of smell works. It turns out that we are nanosensors - our noses actually sense molecues - things close to a billionth of a meter in size! But, as you'll see in this video, be careful about with whom you play the game...