My enthusiasm for this book is only slightly dimmed by not really understanding most of its almost 100 years old contents!
Eddington was responsible for championing Einstein's theory of relativity at a time when supporting a German citizen's work could be seen as unpatriotic, if not treasonous, especially as Eddington was a Quaker and a WWI conscientious objector. He was the first to experimentally prove Einstein's theory's ability to predict ⬇️
I've enjoyed learning about his work and life, and there's a bit about him in this BBC article: https://www.bbc.co.uk/news/science-environment-48369980 2mo