The Nanocar

Using the parts inside a single molecule, scientists have constructed the world's smallest car. It has a chassis, axles and a pivoting suspension. The wheels are buckyballs, spheres of pure carbon containing 60 atoms apiece.

It'd be a real squeeze to take it for a spin, however.

The whole car is no more than 4 nanometers across. That's slightly wider than a strand of DNA. A human hair is about 80,000 nanometers thick.

Other groups have made car-shaped nanoscale objects. But this is the first one that rolls "on four wheels in a direction perpendicular to its axles," the researchers reported Thursday.

What's the point? Nanotrucks, of course.

Check out the story.

Here are some other "small" breakthroughs

The World's Smallest Motor

The World’s Smallest Robot

The World's Smallest Refrigerator

The World’s Smallest Fountain Pen