Careful, depending on where you live in Wisconsin, you may be stepping on a very expensive and very complicated high energy physics experiment.
An invisible beam of mysterious particles called neutrinos, shot from an accelerator at the Fermi National Accelerator Laboratory in northern Illinois, is passing beneath the state at this very second.
In fact, according to UW- Madison physicist Albert Erwin, who has worked on the experiment for the past five years, the beam passes just east of Madison.