Dubbed the Tweel, the novel design replaced standard pneumatic tires and metal wheels with deforming spokes around a hub. While uses of the Tweel are still limited, the tech is about to get a big ...

Narrator: From the wheels of NASA's moon rover to Michelin's Tweel, we've seen tires that don't need air for decades. We've even seen prototypes for everyday cars that roll over sharp nails with ease.