Artist, tinkerer and mad scientist Joe Davis stands with his iconic sculpture Galaxy: Earth Sphere at Kendall Square in Cambridge, Massachusetts. Davis's non-traditional work has not always been welcomed as public art. His zany artistic interpretations have gotten him kicked out of countless schools and cited for a municipal trash-dumping violation. Such opposition has not deterred the scientific artist, however, whose expressions range from minuscule DNA encoding to broadcasting sounds in space. 

"Artists have to open up a window on the world, because art must describe everything," Davis says. "Since all of our dreams will come true, somebody had better have some good ones."