Limits of rainbows
Date
20 August 1670
Creator
Renatus Franciscus Slusius (1622 - 1685, Belgian) , Mathematician
Object type
Archive reference number
Manuscript page number
p48
Material
Dimensions
height (page): 310mm
width (page): 198mm
width (page): 198mm
Subject
Content object
Description
A diagram originally used by Descartes to determine the limits of the primary and secondary rainbows in angular measure from the observer's eyes. In his letter to Henry Oldenburg dated 20 August 1670, Franciscus Renatus Slusius suggested that he could find the solution by experimenting on a glass globe full of water. Slusius asked Oldenburg to transmit this solution to Isaac Barrow, who was doubtful of its accuracy.
This diagram is copied from EL/S1/65/001 and copied in LBC/4/064.
This diagram is copied from EL/S1/65/001 and copied in LBC/4/064.
Associated place