Fitting Hyperbolic pants to a three-body problem. Abstract. Consider the three-body problem with an attractive 1/r 2 potential. Modulo symmetries, the dynamics of the bounded zero-angular momentum solutions is equivalent to a geodesic flow on the thrice-punctured sphere, or " pair of pants ". The sphere is the shape sphere. The punctures are the binary collisions. The metric generating the geod...

/55v cont'd/ Wednesday April J. The weather has quite changed very beautiful today quite as warm as one wld. ever /56r/ wish. Went down to the Hotel Dieu followed M. Chomel this morning. I like the manner of questioning patients which Physicians have at Paris there is so much system' with them. Very superior to the method of the English Physicians. There can be no doubt that Paris is a most adm...