Nova Geminorum 1912 and the origin of the idea of gravitational lensing

@article{Sauer2008NovaG1,
  title={Nova Geminorum 1912 and the origin of the idea of gravitational lensing},
  author={Tilman Sauer},
  journal={Archive for History of Exact Sciences},
  year={2008},
  volume={62},
  pages={1-22}
}
  • T. Sauer
  • Published 7 April 2007
  • Physics
  • Archive for History of Exact Sciences
Einstein’s early calculations of gravitational lensing, contained in a scratch notebook and dated to the spring of 1912, are reexamined. A hitherto unknown letter by Einstein suggests that he entertained the idea of explaining the phenomenon of new stars by gravitational lensing in the fall of 1915 much more seriously than was previously assumed. A reexamination of the relevant calculations by Einstein shows that, indeed, at least some of them most likely date from early October 1915. But in… 
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