Hunting the Elements

Watch David Pogue's hilarious out-takes from NOVA's "Hunting the Elements."

Where do nature's building blocks, called the elements, come from? They're the hidden ingredients of everything in our world, from the carbon in our bodies to the metals in our smartphones. To unlock their secrets, David Pogue, technology columnist and lively host of NOVA's popular "Making Stuff" series, spins viewers through the world of weird, extreme chemistry

Sharks are known to be sensitive to the electrical fields of magnets, but surprisingly, this non-magnetic rare earth metal repels them.

Marine biologist Patrick Rice is using rare earth elements to repel sharks.