ABSTRACT
In the beginning of guns and ballistics – sometime between the 13th and the 14th centuries, but well after the first “Fire Lance” in the 10th century China – before we had finally realized bullets (or projectiles) travel in a parabolic trajectory; we held the assumption, not aware of the effects of the aerodynamic drags, gravity, and solar energy; that bullets travel in a straight line; reach a maximum distance for a given gun and powdercharge, and then abruptly drop to the ground – also in a straight line.
