We can actually watch in real-time as these nano-machines make themselves.

Properly configured, the billions of atoms in the merely nanometer thick conductors behave like a single artificial atom and obey the laws of quantum mechanics.

To see anything smaller than 500 nm, you will need an electron microscope.

I' d be about as big as a virus, but nano is even smaller than that.

We need to better understand how nano can be benign in foods, but [also] where the dangers are.