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Alzheimer's Clinical Trials

Video
4:30
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Alzheimer's Other Victims

Video
3:49
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Alzheimer's Virus-Like Protein

Video
4:13
Inside the Mind of Alzheimer’s

Inside the Mind of Alzheimer’s

Video
4:23
Predicting Alzheimer’s

Predicting Alzheimer’s

Video
2:38
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Gravity Changes Colors

Video
2:42
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Saving the Montauk Lighthouse

Video
2:55
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3 Things "Faster Than Light"

Video
3:49
The Physics Behind Texting

The Physics Behind Texting

Video
3:37
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Make Your Own Hydrothermal Vent

Video
1:44
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NOVA Black Holes App

Video
1:00
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Drilling For the Dinosaurs' End

Video
3:15
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NOVA

Ötzi the Iceman's Ax

How did Ötzi the Iceman, who lived 5300 years ago, sharpen his ax?