Louis A. Bloomfield, professor of physics at the University of Virginia, has been answering readers’ questions regarding the physics of everyday things since 1997. Students can search Bloomfield’s archive of revealed wisdom by keyword or topic. Find out why coffee seems warmer after you stir in cream, even though the cream is cold (transfer of energy). Discover the reason that paper towels absorb water (cellulose binds to water easily). And finally, uncover ways to make your coffee so hot in the microwave that the cup explodes. Science is fun!