Diagram for the Florentine Problem
                                Date
                            
                            
                                17 January 1694
                            
                            
                        
                            
                            
                            
                                Creator
                            
                            
                                Unknown, Artist
                            
                            
                        
                            
                            
                            
                                Object type
                            
                            
                            
                        
                            
                            
                            
                                Archive reference number
                            
                            
                            
                        
                            
                            
                            
                                Manuscript page number
                            
                            
                                p2
                            
                            
                        
                            
                            
                            
                                Material
                            
                            
                            
                        
                            
                            
                            
                                Dimensions
                            
                            
                                height (page): 207mm
width (page): 165mm
                            
                        
                            
                            
                            width (page): 165mm
                                Subject
                            
                            
                            
                        
                            
                            
                            
                                Description
                            
                            
                                This figure is from David Gregory's solution to the 'Florentine' problem set by Vincenzo Viviani, a disciple of Galileo Galilei, in the Acta Eruditorum (1692). The task was to create four equal-sized windows from a spherical dome in such a way that the remainder of the sphere would be quadrable. Gregory's solution was presented to the Royal Society through Edmond Halley on 17 January 1694, and was printed in Philosophical Transactions of the Royal Society, vol. 18, no. 207 (January 1694). Gregory's solution was one of several correct solutions offered.
                            
                            
                        
                            
                            
                            
                                Transcription
                            
                            
                                'Solutio Problematis Florentini' by David Gregory in his letter to Edmond Halley
Transcribed by the Making Visible project
                            
                        
                            
                            
                            Transcribed by the Making Visible project
                                Object history
                            
                            
                                17 January 1694, 'Halley produced Dr Gregory's Letter to himself about the Florentine Problem of taking four segments out of a Hemisphere so as to leave the residue of the Curve surface Quadrable. Dr Gregory sent up his Demonstration of the said Problem, which was referd to Dr Hook to examine'; 24 January 1694, 'Ordered, that Sr Viviani have a Copy of Dr Gregory's Solution of the Florentin Problem communicated to him, and that Dr Gregorys Paper be published in the Transactions' (JBO/9/149-50).
Fig. 3 in David Gregory, ‘Solutio problematis Florentini’, Phil. Trans., vol. 18, no. 207 (January 1694), pp. 25-29.
                            
                        
                            
                            
                            Fig. 3 in David Gregory, ‘Solutio problematis Florentini’, Phil. Trans., vol. 18, no. 207 (January 1694), pp. 25-29.
                                Related fellows
                            
                            
                                David Gregory (1659 - 1708, British) , Astronomer, Astronomer
Edmond Halley (1656 - 1742, British) , Astronomer
                            
                        
                            
                            
                            Edmond Halley (1656 - 1742, British) , Astronomer
                                Associated place