Arthur Gossard is a smart person who knows a lot about science. He is a scientist who studies things that are too small for us to see with our eyes, called "nanotechnology." He looks at really tiny things, like really small computer parts, to see how they work and how we can make them even better. He also likes to study how these tiny things can be used to make new and exciting things in the future. People who are interested in science think he is very cool!