“That flits upon an orbit elliptically or parabolically or hyperbolically curved, keeping no man knows what trysts with Time.”

“In 1847 Boehm produced an entirely new model, with a head joint which narrowed parabolically towards its top, a one-piece cylindrical body, and a cylindrical foot.”

“The sinister truth remained that, whether hyperbolically or parabolically borne away, the projectile would never again meet either the earth or the moon.”