The flying Batman

Comics' authors, and more generally those who write about fiction (but not only them), are the modern Scheherazade of One Thousand and One Nights. This comparison is very fitting for Detective Comics #1027 which celebrates at the same time #27, where Bob Kane and Bill Finger's Batman made his debut, and the 1001th issue of the magazine dedicated to the Caped Crusader, so you understand the initial comparison.
I'm not here, though, to write you why Detective Comics's 1001 releases with Batman (if you want to, follow note⁽¹⁾), but to seize the opportunity and talk about Batman's physics.