S2 is obtained by taking a disk and gluing the opposite sides together: ... ball with the northern hemisphere glued. to the southern hemisphere. Consider the unwrap: ...
same idea, to prove. we can always choose orthogonal axis of coordinate. when i != j, dij ... same idea, easily prove. BH. When giant is close to the supermassive ...
BP Advertisement. Culture Jamming. Wes Gilligan. Josh Lebovitz. Original. Advertisement. This advertisement was part of a series used in BP's UK print campaign ...