John Havelock and Henri Poincaré
From Gnomon Chronicles
John Havelock and Henri Poincaré is a well-known image depicting mathematician and alleged time-traveller John Havelock communicating with mathematician-criminologist Henri Poincaré.
John Havelock and Henri Poincaré is a well-known image depicting mathematician and alleged time-traveller John Havelock communicating with mathematician-criminologist Henri Poincaré.