Beyond the Elements: Reactions (with Audio Description)
About the Episode
Host David Pogue dives into the transformative world of chemical reactions, from the complex formula that produces cement to the single reaction that’s allowed farmers to feed a global population by the billions. This episode contains audio description, which is now a standard feature in more recent NOVA episodes.
Aired:
02/02/21
| Expires: 02/02/24 | Runtime: 53m 17s
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Extras
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Solar System: Storm Worlds Preview
Discover the dramatic forces creating spectacular weather on neighboring planets and moons.0:30 -
What Happened to the Hole in the Ozone Layer?
In the 1980s scientists discovered a crucial part of the Earth’s atmosphere was extremely thin.3:13 -
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Legacy of the Land
Native American communities share their culture and knowledge to address climate change. -
Harvesting the Future
Ak-chin farming makes desert agriculture possible, and now, those practices help communities today.9:22 -
Megadroughts and Indigenous Voices
The Southwest is in a megadrought, but Native Americans have survived them before.7:51
