1. Black Holes 10
... . Unfortunately, in Simon's time, there was no way to test his idea. This idea was not actually determined until 1939, when J. Robert Oppenheimer and his student, Hartland Snyder, showed that a cold and sufficiently massive star must collapse indefinitely, becoming a black hole. Oppenheimer and Snyder could have never figured this out without the earlier work of Einstein and his general theory of relativity, which ... ...
- Word Count: 3023
- Approx Pages: 12
- Grade Level: High School