
A look at the science behind yawning
Clip: Season 4 Episode 2 | 7m 48sVideo has Closed Captions
Andrew Gallup shares the science behind yawning,
To many yawning is simply a reflex that occurs when one is tired or bored. Evolutionary Neuroscientist, Andrew Gallup has been “tirelessly” studying the science behind yawning. He joins Hari Sreenivasan via Google Hangout with his insights.
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SciTech Now is a local public television program presented by WLIW PBS

A look at the science behind yawning
Clip: Season 4 Episode 2 | 7m 48sVideo has Closed Captions
To many yawning is simply a reflex that occurs when one is tired or bored. Evolutionary Neuroscientist, Andrew Gallup has been “tirelessly” studying the science behind yawning. He joins Hari Sreenivasan via Google Hangout with his insights.
Problems playing video? | Closed Captioning Feedback
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Learn Moreabout PBS online sponsorshipHow do plants know which way is up?
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Clip: S4 Ep2 | 4m 14s | Ainissa Ramirez explains how plants know which way is up. (4m 14s)
The mechanics of insect flight
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Clip: S4 Ep2 | 5m 7s | Scientist use high-speed cameras to understand the mechanics of insect flight. (5m 7s)
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Clip: S4 Ep2 | 6m 56s | A sustainable cemetery inside a nature preserve. (6m 56s)
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SciTech Now is a local public television program presented by WLIW PBS