meters 10 0 10 -1 10 -2 Human Macroscale is what can be seen with the naked eye. 10 -3 Ant 10 -4 Hair detail Microscale 10 -5 is too small to see without a light microscope. 10 -6 Cell 10 -7 Virus 10 -8 Nanoscale is smaller than a cell and bigger than an atom. width of DNA 10 -9 10 -10 Atom Atomic Scale is the size of an atom. 10 -11 10 -12 This project was supported by the National Science Foundation under Grant No. ESI-0532536.