Design of telescope
                                Date
                            
                            
                                7 March 1673
                            
                            
                        
                            
                            
                            
                                Object type
                            
                            
                            
                        
                            
                            
                            
                                Archive reference number
                            
                            
                            
                        
                            
                            
                            
                                Manuscript page number
                            
                            
                                p71
                            
                            
                        
                            
                            
                            
                                Material
                            
                            
                            
                        
                            
                            
                            
                                Dimensions
                            
                            
                                height (page): 313mm
width (page): 201mm
                            
                        
                            
                            
                            width (page): 201mm
                                Subject
                            
                            
                            
                        
                            
                            
                            
                                Content object
                            
                            
                            
                        
                            
                            
                            
                                Description
                            
                            
                                Diagram of telescope and sight in a letter from Isaac Newton to John Collins dated 7 March 1673, to be sent on to James Gregorie.
A represents the great concave,
E the Eye-glass,
BCD a prism of glass or crystal whose sides BC & BD are not flat, but spherically convex.
This diagram is copied at LBC/6/080.
                            
                            
                        
                            
                            
                            A represents the great concave,
E the Eye-glass,
BCD a prism of glass or crystal whose sides BC & BD are not flat, but spherically convex.
This diagram is copied at LBC/6/080.
                                Related fellows
                            
                            
                            
                        
                            
                            
                            
                                Associated place