Observing my son, I can recognize the intellectual curiosity inherent in children: What happens if I drop a spoon on the floor?

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Drop your book bags on the marble floor, and then practice saying "muy bonita" when you see the view of the Pacific Ocean from your secluded balcony.

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Every drop of saliva you leave on a Styrofoam coffee cup or hair follicle that falls to the floor contains DNA that in theory can be tested for everything from ancestry to disease risk.

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He would sit next to me as I chopped, eyes fixed firmly on the floor, waiting for my knife work to prove clumsy enough for a carrot or tomato to drop.

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