Dear teacher,
Nanotechnology is the realm of the very, very small: its name comes from the nanometer, a unit of measure so tiny that a human hair is roughly 80,000 nanometers thick. Individual molecules are measured in nanometers; so are viruses, strands of DNA, and the microscopic structures that determine the performance of everyday materials like steel and plastic.
Q : "so" refers to "measured in nanometers", doesn't it?
So
Moderator: Alan
