Nano Trucks
You are looking at a nano-truck, about the width of a single strand of DNA. Well, actually, this is someone's rendition of one because you can't actually see it. That would be silly. Nonetheless, it's amazing, and something I hadn't heard of before. Imagine the size of the tweezers used to place these few atoms and molecules together. This probably took a while to achieve. Then, again, as fast as technology progresses, perhaps this little wonder was created overnight, while we were sleeping. But, no, that can't be, because... There's more than one. There is an entire nano-transportation world out there -- trucks, taxis, limos, jeeps, 4-wheel drive, AWD, Nano-Uber -- if only we could see it, which we can't. And they race them on nano-race tracks. Sorry no dimensions on the size of the track, but I'm sure its circular and about a nano-mile in circumference because there are no nano-towns to run a Grand Prix through. But who knows wha...