Abe Liboff in his office at Oakland University in 1989Today is Abe Liboff’s 90th birthday. Liboff is a physicist —he was the chairman of the physics department at Oakland University in Rochester, Michigan, for many years, and, before that, a professor at NYU. He used to be a coeditor of the journal, Electromagnetic Biology and Medicine. As long as I have known him, Liboff has been asking questions about the world he sees all around. When possible, he runs experiments to test out his ideas.