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TED Talks
TED: One very dry demo | Mark Shaw
Mark Shaw demos Ultra-Ever Dry, a liquid-repellent coating that acts as an astonishingly powerful shield against water and water-based materials. At the nano level, the spray covers a surface with an umbrella of air so that water bounces...
SciShow
High-Tech Masks: The Future of Face Coverings
Masks do wonders to stop the spread of infection and inhalation of harmful particles, and some new technology can make them both more effective and easier to clean.
SciShow
9 Futuristic Materials
Learn about some materials that seem like they should belong in science fiction, but actually exist today!
CHA
PTERS
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br/> A
EROGELS
0:46
FLOWER UNAFFEC
TED BY F
LAME Credit: NASA
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CHA
PTERS
View all<
br/> A
EROGELS
0:46
FLOWER UNAFFEC
TED BY F
LAME Credit: NASA
...
Khan Academy
Khan Academy: Bouncing Droplets: Superhydrophobic and Superhydrophilic Surfaces
This video introduces the concept of surface tension, and shows how roughness can make a surface superhydrophobic or superhydrophilic. The Wenzel and Cassie-Baxter models are explained. [8:17]