Galvanometer and Electrograph
                                Date
                            
                            
                                ca.1910
                            
                            
                        
                            
                            
                            
                                Creator
                            
                            
                                Albert Edgar Gendle (1886 - 1923, British) , Meteorologist
                            
                            
                        
                            
                            
                            
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                                Material
                            
                            
                            
                        
                            
                            
                            
                                Technique
                            
                            
                            
                        
                            
                            
                            
                                Dimensions
                            
                            
                                height (print): 150mm
width (print): 194mm
height (paper support): 202mm
width (paper support): 253mm
                            
                        
                            
                            
                            width (print): 194mm
height (paper support): 202mm
width (paper support): 253mm
                                Subject
                            
                            
                            
                        
                            
                            
                            
                                Content object
                            
                            
                            
                        
                            
                            
                            
                                Description
                            
                            
                                Two instruments, captioned ‘Moving-Coil Galvanometer. Mr. Walker’s Electrograph’. 
A text accompanying the illustration states that the Walker instrument ‘is a Quadrant Electrometer…no battery is required. By making the quadrants of different metals – copper and zinc – in contact, a difference of electric potential is obtained straightaway.’
Eskdalemuir Observatory was constructed in 1904 to make geomagnetic and other observations. It was sufficiently remote (located near Eskdalemuir, Dumfries and Galloway, Scotland) to be free from electrical interference. Many of the instruments had originally been located at Kew Observatory
Albert Edgar Gendle (1886-1923) was Clerk Assistant to the Eskdalemuir Observatory until 1913, having worked as a boy at Kew Observatory. He then joined the Meteorological Office before becoming a lieutenant in the Royal Air Force in 1919. He was killed near Baghdad, Iraq, in 1923.
                            
                            
                        
                            
                            
                            A text accompanying the illustration states that the Walker instrument ‘is a Quadrant Electrometer…no battery is required. By making the quadrants of different metals – copper and zinc – in contact, a difference of electric potential is obtained straightaway.’
Eskdalemuir Observatory was constructed in 1904 to make geomagnetic and other observations. It was sufficiently remote (located near Eskdalemuir, Dumfries and Galloway, Scotland) to be free from electrical interference. Many of the instruments had originally been located at Kew Observatory
Albert Edgar Gendle (1886-1923) was Clerk Assistant to the Eskdalemuir Observatory until 1913, having worked as a boy at Kew Observatory. He then joined the Meteorological Office before becoming a lieutenant in the Royal Air Force in 1919. He was killed near Baghdad, Iraq, in 1923.
                                Associated place