Up Next
Back to Show
NOVA
Beyond the Elements: Reactions Preview
Just about every solid, liquid, or gas in the world as we know it begins with reactions between individual atoms and molecules. 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—a reaction that when reversed, unleashes high explosives.
Support Provided By
53:25
Surprising evidence at the world’s oldest temple overturns our understanding of human history.
53:38
Explore mammals’ surprising origins, long before the age of dinosaurs.
53:39
Do speech buttons really allow dogs to talk to us? Scientists investigate.
Unlock with PBS Passport
53:39
New evidence sheds light on the remarkable life—and mysterious collapse—of the ancient jungle city.
Unlock with PBS Passport
53:31
What if violent asteroid impacts actually jump-started life on Earth? Explore a dramatic theory.
Unlock with PBS Passport
53:41
See how ingenuity and teamwork keep the crew alive and doing science 250 miles above Earth.
Unlock with PBS Passport
53:40
Astronauts and Mission Control relive terrifying moments during construction of the ISS.
53:28
Find out why deadly flash floods are on the rise and how we can protect ourselves from them.
53:21
Explore mysterious 9,000-year-old Stone Age megastructures found in the Arabian Desert.
Unlock with PBS Passport
53:32
Discover how two revolutionary ancient inventions changed the course of humanity forever.
Unlock with PBS Passport
53:25
Follow ancient humans’ journey into an icy and perilous new land.
Unlock with PBS Passport
53:27
Discover how Homo sapiens outlasted Neanderthals – and how they helped make us who we are today.