Fig 1: Illustration showing Parabolic trajectory and trajectory board with adjusting screws (C,D) and a plumb bob (A,b). Marble balls were released from top and their path tracked on the board. Fig 2: Parabolic trajectories of 3: Descartes's globe apparatus for investigating 4: Bulfinger's apparatus for the same purpose. From Sigaud de la Fond Cabinet de Physique Experimental. 1775

---

Size: 4837px × 4335px
Location:
Photo credit: © World History Archive / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 18th, archival, archive, ball, century, experiment, experimental, gravity, historical, history, illustrated, illustration, liquid, liquids, marble, marbles, motion, parabolic, physics, science, scientific, screw, screws, tracked, tracking, trajectory