The discovery of the notes for Richard Feynman's major lecture on the motion of planets around the sun, presented in this book, allows readers an insight into the workings of his mind. The book relates how the notes came to be lost, and how they came to be found again and reconstructed.

The discovery of the notes for Richard Feynman's major lecture on the motion of planets around the sun, presented in this book, allows readers an insight into the workings of his mind. The book relates how the notes came to be lost, and how they came to be found again and reconstructed.