The expanding universe / by Sir Arthur Eddington.
- Eddington, Arthur Stanley, Sir, 1882-1944.
- Date:
- 1940
Licence: In copyright
Credit: The expanding universe / by Sir Arthur Eddington. Source: Wellcome Collection.
50/138 (page 42)
Licence: In copyright
Credit: The expanding universe / by Sir Arthur Eddington. Source: Wellcome Collection.