Double-bottomed ship
                                Date
                            
                            
                                1662
                            
                            
                        
                            
                            
                            
                                Creator
                            
                            
                                Henry Oldenburg (1612 - 1677, German) , Scientific correspondent
                            
                            
                        
                            
                            
                            
                                After
                            
                            
                                William Petty (1623 - 1687, British) , Natural philosopher
                            
                            
                        
                            
                            
                            
                                Object type
                            
                            
                            
                        
                            
                            
                            
                                Archive reference number
                            
                            
                            
                        
                            
                            
                            
                                Manuscript page number
                            
                            
                                p2
                            
                            
                        
                            
                            
                            
                                Material
                            
                            
                            
                        
                            
                            
                            
                                Dimensions
                            
                            
                                height (page): 306mm
width (page): 195mm
                            
                        
                            
                            
                            width (page): 195mm
                                Subject
                            
                            
                            
                        
                            
                            
                            
                                Content object
                            
                            
                            
                        
                            
                            
                            
                                Description
                            
                            
                                Three figures of a ship in the margin of a page, in a letter from William Petty to William Brouncker dated 29 October 1662. This is a copy of EL/P1/14.
Petty's double-bottomed ship (catamaran) was called 'Simon and Jude' because it was launched on the feast day of Simon and Jude (28 October). It was later called 'Invention'. It had two 'cylinders', each two foot in diameter, with a mast 20 feet long. Several models had been made, including one to carry three men, before this version.
                            
                            
                        
                            
                            
                            Petty's double-bottomed ship (catamaran) was called 'Simon and Jude' because it was launched on the feast day of Simon and Jude (28 October). It was later called 'Invention'. It had two 'cylinders', each two foot in diameter, with a mast 20 feet long. Several models had been made, including one to carry three men, before this version.
                                Object history
                            
                            
                                At the meeting of the Royal Society on 19 November 1662, ‘Mr. Graunt to communicate an extract of Sir William Petty's letter concerning the new fashioned ship, together with a model of it, at the next meeting’ (Birch 1:126).
On 26 November 1662, ‘Sir William Petty’s second letter to the lord viscount Brouncker was read, giving a farther account of his new ship; as also an extract of another letter of his to Mr. Graunt, who was desired to let Sir William know, that the society was well pleased with the invention’ (Birch 1:131).
                            
                        
                            
                            
                            On 26 November 1662, ‘Sir William Petty’s second letter to the lord viscount Brouncker was read, giving a farther account of his new ship; as also an extract of another letter of his to Mr. Graunt, who was desired to let Sir William know, that the society was well pleased with the invention’ (Birch 1:131).
                                Related fellows
                            
                            
                                William Brouncker, 2nd Viscount Brouncker of Lyons (1620 - 1684, British) , Mathematician
William Petty (1623 - 1687, British) , Natural philosopher
John Graunt (1620 - 1674, British) , Statistician
                            
                        
                            
                            
                            William Petty (1623 - 1687, British) , Natural philosopher
John Graunt (1620 - 1674, British) , Statistician
                                Associated place