Frank Wilczek has a special fondness for rainbows.
It's not just the show-stopping, full-arc-across-the-sky rainbows that catch the Nobel laureate's eye. He's equally transfixed by the array of color that shows up on soap bubbles, in sprays of water and in prisms.
"There are rainbows all over the place, once you start paying attention," he said recently from his home in Concord, Mass.
