Instrument for finding the force of falling bodies
                                Date
                            
                            
                                18 February 1663
                            
                            
                        
                            
                            
                            
                                Creator
                            
                            
                                Unknown, Artist
                            
                            
                        
                            
                            
                            
                                After
                            
                            
                                Robert Hooke (1635 - 1703, British) , Natural philosopher
                            
                            
                        
                            
                            
                            
                                Object type
                            
                            
                            
                        
                            
                            
                            
                                Archive reference number
                            
                            
                            
                        
                            
                            
                            
                                Manuscript page number
                            
                            
                                p347
                            
                            
                        
                            
                            
                            
                                Material
                            
                            
                            
                        
                            
                            
                            
                                Dimensions
                            
                            
                                height (page): 320mm
width (page): 200mm
                            
                        
                            
                            
                            width (page): 200mm
                                Subject
                            
                            
                            
                        
                            
                            
                            
                                Description
                            
                            
                                A figure accompanying Robert Hooke's paper titled 'A description of the Instrument for finding the force of falling bodies', which was read at a meeting of the Royal Society on 18 February 1663. 
ABC: pedestal for the scale.
DE: a double beam of a scale, designed to let a steel ball, F, fall from a height onto a steel plate, G.
H: counterpoise on the scale, IK.
L: a small spring with a stay, M, to detect whether the ball has moved the scale.
This figure is a copy from the Register Book Original (RBO/2ii/115; RBO/2i/151). The original drawing by Hooke is at Cl.P/20/12/001. Other copies can be found at RBC/1/339, MS/215/073 and RB/1/20/257.
This volume is another copy of entries of the first two volumes of the Register Book. It was given to Sir Joseph Banks by G. S. Heales Esquire of Doctor's Common on 31 May 1814.
                            
                            
                        
                            
                            
                            ABC: pedestal for the scale.
DE: a double beam of a scale, designed to let a steel ball, F, fall from a height onto a steel plate, G.
H: counterpoise on the scale, IK.
L: a small spring with a stay, M, to detect whether the ball has moved the scale.
This figure is a copy from the Register Book Original (RBO/2ii/115; RBO/2i/151). The original drawing by Hooke is at Cl.P/20/12/001. Other copies can be found at RBC/1/339, MS/215/073 and RB/1/20/257.
This volume is another copy of entries of the first two volumes of the Register Book. It was given to Sir Joseph Banks by G. S. Heales Esquire of Doctor's Common on 31 May 1814.
                                Object history
                            
                            
                                At the meeting of the Royal Society on 18 February 1663, ‘[Hooke's] account of the force of falling bodies was read, and ordered to be registered’ (Birch 1:195).  The text and figure are reproduced in Birch 1:195-97.
This figure was printed in Plate 1 from Robert Hooke, Posthumous Works, ed. by Richard Waller (London: S. Smith and B. Walford, 1705), after p. 126, fig. 1.
                            
                        
                            
                            
                            This figure was printed in Plate 1 from Robert Hooke, Posthumous Works, ed. by Richard Waller (London: S. Smith and B. Walford, 1705), after p. 126, fig. 1.
                                Related fellows
                            
                            
                                Robert Hooke (1635 - 1703, British) , Natural philosopher
                            
                            
                        
                            
                            
                            
                                Associated place