Pneumatic engine
                                Date
                            
                            
                                June 1662
                            
                            
                        
                            
                            
                            
                                Creator
                            
                            
                                Christiaan Huygens (1629 - 2006, Dutch) , Natural philosopher
                            
                            
                        
                            
                            
                            
                                Object type
                            
                            
                            
                        
                            
                            
                            
                                Archive reference number
                            
                            
                            
                        
                            
                            
                            
                                Manuscript page number
                            
                            
                                p5
                            
                            
                        
                            
                            
                            
                                Material
                            
                            
                            
                        
                            
                            
                            
                                Dimensions
                            
                            
                                height (page): 210mm
width (page): 150mm
                            
                        
                            
                            
                            width (page): 150mm
                                Subject
                            
                            
                            
                        
                            
                            
                            
                                Content object
                            
                            
                            
                        
                            
                            
                            
                                Description
                            
                            
                                A figure of a glass phial with a long neck inverted in a glass vessel, for conducting Torricellian experiments in an air pump.  This was the apparatus used by Christian Huygens, as described in his letter of June 1662 to Robert Moray. The letter was translated and read at the meeting of the Royal Society on 30 July 1662. 
There are copies of this figure at LBO/1/036 and LBC/1/040.
                            
                            
                        
                            
                            
                            There are copies of this figure at LBO/1/036 and LBC/1/040.
                                Transcription
                            
                            
                                AB est le Recipient de verre, environ de la hauteur d'un pied ouvert par en bas et attachè avec du ciment dans l'escuelle de cuivre CD qui tient a la machine, dans ce recipient est enfermè la banquet EN, qui contient de l'eau fraische jusqu'en F, et la phiole de verre GLH a long col, remplie de mesme eau et enfoncee avec le bout ouvert dans cellle du banquet.
Transcribed by the Making Visible project
                            
                        
                            
                            
                            Transcribed by the Making Visible project
                                Object history
                            
                            
                                At the meeting of the Royal Society on 30 July 1662, ‘The translation of Monsieur Huygens’s letter of July 14, 1662, to Sir Robert Moray by the amanuensis, was read by him, and ordered to be entered in the letter book’ (Birch 1:102).
                            
                            
                        
                            
                            
                            
                                Related fellows
                            
                            
                                Christiaen Huygens (1629 - 1695, Dutch) , Natural philosopher
                            
                            
                        
                            
                            
                            
                                Associated place