Actual and relative position plots. Position of B is fixed on the right hand side. Perpendicular shows the point of closest approach.
Relative velocity. Y needs to set course for closest approach on X, knowing X’s velocity and her own maximum speed.
Listen to “The Eternal Source of Energy of the Universe, Origin, and Intensity of Cosmic Rays.” By Nikola Tesla in 1932.
The scientist speaks of the physics and mechanics of the Nature, radioactivity, and his discovery of “cosmic rays” and their characteristics.