Question: what is smaller then hair?

Maddison Coke answered on 14 Mar 2016:

So the world is made up of atoms. A hair is made up of 20,000 atoms across the width of a hair. When we look at making new materials and things to go in a circuit we are looking at these small features that are smaller then a hair. One type of thing is a tiny wire that we can make that is about 1,000 thinner than a hair.