The true anomaly of a trajectory with this shape with respect to time can be found from Barker’s equation. The proposal of flight with this shape to simulate zero-gravity was hypothesized (15[1])by the Haber brothers, (15[1])leading to the (15[1])development (15[1])of NASA’s “Vomit Comet.” (15[1])Perfect orbits with this shape (15[1])while hypothetically possible don’t exist in nature because of the necessity of traveling at an object's exact escape velocity. (15[1])(*) Mirrors with this two dimensional shape can collimate light from a point source or send (-5[1])straight parallel rays to a common focus point. Galileo gave instructions on how to draw one of these shapes in Two New Sciences, in which (-5[1])he also notably demonstrated a certain motion had this shape. For 10 points, name this shape of the trajectory of classical projectile motion. ■END■ (10[1])