
Time is an object
Red-eyed tree frog, near Arenal Volcano, Costa Rica. Photo by Ben Roberts/Panos Pictures Not a backdrop, an illusion or an emergent phenomenon, time has a physical size that can be measured in laboratories Sara Walker is an astrobiologist and theoretical physicist at Arizona State University, where she is deputy director of the Beyond Center for Fundamental Concepts in Science and professor in the School of Earth and Space Exploration. She is also external professor at the Santa Fe Institute and a fellow at the Berggruen Institute. Lee Cronin is Regius Chair of Chemistry at the University of Glasgow in Scotland and … Continue reading Time is an object