Snapshots through time Physics, physicists and Physics World have transformed over the past 30 years, and will continue to do so. In this specially commissioned illustration, Clifford V Johnson takes us to the past, present and future of a physics lab. Clifford V Johnson is professor of physics at the University of Southern California, Los Angeles. He is also a blogger and comic artist. His non-fiction graphic book The Dialogues: Conversations about the Nature of the Universe was published in 2017 by MIT Press