![](https://www.haverford.edu/sites/default/files/styles/marquee_top_image/public/nano-squirrel1_0.jpg?itok=x43unEH7)
World’s Smallest Black Squirrel?
“Professor Walter Smith put me in charge of a $100,000 scanning electron microscope and trusted me with a new technology for Haverford: electron beam lithography. Being able to manufacture nanoscale objects was fascinating, and I loved being on the cutting edge of a new program.” – Alberto Guerrero ’11