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Visualizing hidden worlds inside your body - Dee Breger

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TEDEd Animation

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How do we see things too small to be detected by the human eye? What about things inside our own bodies? At TEDYouth 2012, Dee Breger uses a scanning electron microscope to give us a glimpse of images including blood clots, thyroid glands, and lungs with pneumonia.

What allows the heart to expand and contract?

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