The Vanishing Mr. Feynman

In his final years, Richard Feynman's curiosity took him to some surprising places. We hear from his companions on the trips he took — and one he wasn’t able to. (Part three of a three-part series .) SOURCES: Alan Alda , actor and screenwriter. Barbara Berg, friend of Richard Feynman. Helen Czerski , physicist and oceanographer at University College London. Michelle Feynman , photographer and daughter of Richard Feynman. Cheryl Haley, friend of Richard Feynman. Debby Harlow, friend of Richard Feynman. Ralph Leighton , biographer and film producer. Charles Mann , science journalist and author. John Preskill , professor of theoretical physics at the California Institute of Technology. Lisa Randall , professor of theoretical particle physics and cosmology at Harvard University. Christopher Sykes , documentary filmmaker. Stephen Wolfram , founder and C.E.O. of Wolfram Research; creator of Mathematica, Wolfram|Alpha, and the Wolfram Language. RESOURCES: I Love My Wife... , directed by Ian Tierney (2020). Quantum Man: Richard Feynman's Life in Science , by Lawrence M. Krauss (2011). Perfectly Reasonable Deviations From the Beaten Track: Selected Letters of Richard P. Feynman , edited by…