A dozen years after it first appeared on the world stage, the top quark is still one of the hottest topics in particle physics. Why is it so much heavier than any other particle? And what can it tell us about the origin of mass and other quantum mysteries?
Theorists cant help it: When asked to explain something, they reach for a piece of chalk. The language of math and physics seems to require a writing implement and a large vertical surface.
Affectionately known at the Stanford Linear Accelerator Center (SLAC) as simply “The Blue Book,” The Stanford Two-Mile Accelerator has been a classic on site since the day it was published in 1968.
Even in the company of a two-story nose-picking machine, human cupcakes, battling robots, and power-tool drag races, the giant Tesla coil stands out. Maybe it's the loud buzz and crackle of artificial lightning bolts, writhing like fiery serpents from the top of the thing.
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.
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.
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.