🌐EnglishEnglishDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaРусскийالعربيةفارسی한국어中文日本語EntityQ1680534· pop 21· linked from 50 articlesJames HartleAmerican physicist (1939-2023)Listeners · Last.fmListeners1Total plays1 <a href="https://www.last.fm/music/James+Hartle">Read more on Last.fm</a>via Last.fm · James HartleConnectionsHartle–Hawking stateEntityMarylandEntityCategories1939 births2023 deaths20th-century American physicists21st-century American physicistsAmerican male non-fiction writersAmerican relativity theoristsAmerican textbook writersCalifornia Institute of Technology alumniFellows of the American Academy of Arts and SciencesFellows of the American Physical SocietyMembers of the American Philosophical Society