Lead bricks and radiation gloves normally indicate a need to protect lab workers from radioactivity. For a laboratory at the University of Alabama in Tuscaloosa, however, the opposite is true.
Just inside the site boundary, secluded from most of Fermilab, sits Leonard Baumann's rickety red barn. Baumann, like 55 other farmers, relocated 40 years ago to make way for the construction of Fermilab.
What is this stuff that fills the vacuum of space, accelerates the expansion of the universe, and accounts for 70 percent of everything? More than two dozen experiments aim to find out.
In the 1990s, astronomical observations revealed that the expansion of the universe is accelerating. Not knowing what causes this acceleration, scientists began to attribute the phenomenon to some unknown source of energy, coined "dark energy" by astrophysicist Michael Turner.
Inside, the auditorium at the National Museum of Natural History in Washington, DC, was packed and humming in anticipation. Outside, a man waved a sign at stragglers hurrying for the door: "Need One Ticket for String Theory Debate."
Mike Herlihy is active in the village of North Aurora, near Fermi National Accelerator Laboratory and west of Chicago. Hes been a village trustee for six years, belongs to the Lions Club and served on an advisory committee to evaluate a proposed freeway.
Chip Edstrom routinely tidies the Fermilab Main Control Room to stay awake while working as an accelerator operator on the owl shift. One night, while cleaning equipment and peeling off decades-old labels, Edstrom decided to replace the old ones with fresh ones. In Russian.
Ken McMullen says he does not feel comfortable with categories. That's why when, given a choice between defining himself as a painter or a film-maker, he prefers to be called an artist instead.