Ask Smithsonian: Lightning Round

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Ask Smithsonian: How Long Can a Person Hold Their Breath? (01:32)

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Ask Smithsonian: What Does the World Look Like When Youre Color Blind? (01:35)

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Ask Smithsonian: Whats a Dimple? (01:09)

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Ask Smithsonian: Can Animals Predict Earthquakes and Other Natural Disasters? (01:27)

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Video: Ask Smithsonian: What Is Wind? (01:09)

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Video: Ask Smithsonian: Why Do We Sneeze? (01:21)