Beyond the Elements: Reactions

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.

When you eat peppers, the chemical capsaicin fits into the heat pain receptors in your mouth, sending a false signal that’s identical to the one your brain would receive if you ate something literally burning hot.

Scientists explore how the powerful peptides found in marine cone snail venom can be used for medicinal and therapeutic purposes.

How does a chili pepper make your mouth feel like its on fire? When you eat peppers, capsaicin molecules fit into the heat pain receptors of your mouth, sending a false signal to your brain that's identical to the one it would receive if you ate something literally burning hot.

"Beyond the Elements" host David Pogue and chemical and environmental engineer Ruoxue Yan illustrate how the molecular bonds around us actually make sounds—even if we can’t hear them.