Imagine loading the car with presents on the way to grandma's house, only to get a flat tire. Then, after pulling off the highway, you discover another surprise: the spare tire you thought was in ...

An obvious benefit is that there is no risk of getting a flat, nor need to check on tire air pressure and other maintenance concerns. Initially, Airfree will be aimed at buses and other vehicles ...

It can happen at any time. You walk out to your car and find yourself with a flat tire or you're driving down the road and suddenly the car starts wobbling or bouncing. Flat tires can be caused by ...

Wheels are the obvious means of getting around, but using a standard air-filled rubber tire presents all kinds of problems in space — particularly, what happens if it pops a flat. So the first ...