Throughout history, humans have always tried to improve the tools they use. Animals were bred to be larger, means of locomotion engineered to become more powerful, etc. Until recently, bigger was thought to be better. However, today it seems the opposite is true: Every day we experience pressure for buying smaller cameras, computers, cell phones, and even cars. It is clear that size reduction is an important facet of our lives. Obviously, science is inherently involved in this move towards smaller devices. In fact, the word “nano” (a billionth of a standard size) is so hip right now, it seems…