My bad, you're right, it is nano. 32 or 28 nm, the fundamental point is still valid, you and I can't see the transistors on that CPU die, but you and I can take a CPU and use it. Same thing with this single atom transistor. If it can be developed and practically used, it'll be stuffed in a package and one day you and I can hold a bagazillion transistors in our hand.
I know Hertz did all that , but what about the "scientists" who stay in their lab most of the time ? They are almost always the ones who bring a concept but never manage to make it real .
What do you think Hertz did? In between teaching, he hung out in his lab and played with stuff until he proved something; that's what scientists do. He never made a product to sell, but yet we have radio today. So how did that happen? Someone's got to figure everything out, that's the scientist. Someone's got to see the science and find a practical application for it, that's the inventor. Someone's got to figure out how to make it, those are the manufacturing engineers. And someone has to figure out how to sell it, our beloved marketing folk can't be left out. Very rarely can a single person do all of those things. I think this line from Hertz wiki entry nicely illustrates the difference between primary research and invention/product development:
Hertz's experiments would soon trigger the invention of the wireless telegraph, radio, and later television.