Extras

Video thumbnail: NOVA Beyond the Elements: Reactions Preview

NOVA

Beyond the Elements: Reactions Preview

Discover the fascinating chemistry that makes our world and everything in it—including us.

Beyond the Elements: Reactions Preview

Video thumbnail: NOVA What Gives Hot Peppers Their Heat?

NOVA

What Gives Hot Peppers Their Heat?

"Beyond the Elements" host David Pogue explores the science of hot peppers—viscerally.

What Gives Hot Peppers Their Heat?