Formation of rainbow by dispersion and total internal reflection (top). Observing Newton's Rings (circular concentric interference fringes). From WJ Gravesande "Physices Elementa Mathematica" London 1725, a 'popular' explanation of his friend Newton's "Pr

---

Size: 3112px × 3543px
Photo credit: © Photo12/Ann Ronan Picture Library / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., /, 1725, copperplate, dispersion, elementa, engraving., explanation, formation, friend, gravesande, interference, internal, light, london, mathematica, newton, observation, optics, physices, popular, principia., rainbow, reflection, science, total, waves, wj