Factual error: No one would have used the phrase "black hole" in 1939. The term "black hole" was first used in 1963 in "Life" and "Science News" and by Ann Ewing in an article in January of 1964. Princeton physicist John Wheeler popularised the term.
Bishop73
7th Aug 2023
Oppenheimer (2023)
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Suggested correction: Nobody uses the term "black hole" in the movie, only the term "dark star". Oppenheimer once refers to it as a hole in space, but not a black hole.
When Oppenheimer walks into the room of cheering people (after he says he'll be in Pasadena), someone says "paper on black holes, it's in!"
Ah, yes, I see. I wonder, though, if it's really that unlikely someone would call it a black hole before it was popularized? It is essentially what they are. Certainly, it's possible somebody before 1963 called it that without it ending up in a paper. Just a coincidence, then.