William Thomson's Tide Predicting Machine, 1872
1872
Section of lightning conductor from St Paul’s cathedral
1769
Replica of Lightning Conductor by Benjamin Franklin, United States, 1730-1760
1730-1760 (original); 1931-1939 (replica)
Model of the Zhang Heng seismoscope
132 CE
Non-polarizing electrode, for spontaneous polarisation measurements
1931
Scrase altielectrograph, 1937
1937
Record of Gravity Determinations Made By a Dutch Submarine
1923
Mintrop field seismograph, recording apparatus and box, for geophysical prospecting
1921
MP 8 swamp and marine geophone, 21x5 diam cm
TI 551A Single-drum recorder - reproducer by Techno Instruments
1956-1966
GAA reflection geophone
1950
Three brass screws from the Gravity pendulum by Bailey
1834
Hedges and Lowrie-Hall vacuum earthing device
BAZ shot blaster by Seismograph Service
1958
Air terminal with grooved lead joint attachment for horizontal lightning conductor
1905
Three electric alarm bells
Portable refraction seismograph by Geospace
1960
2-shot firing system MkI by STS
1975-1980
Portions of lead flashing from roof
Piece of signal wire and piece of block wire
Rainwater pipes bonded together
Eötvös torsion balance for geophysical prospecting by Süss Nandor
1920
Geophone, sectioned, c.1955
1955
Potentiometer, for spontaneous polarisation measurements
1931
Original Lodge lightning protector
Solid State Seismometer
Strong motion seismograph
1971-1980
Rubidium-Vapour Magnetometer Sensor, 1968-1972
1968-1972
Model of Henry Cavendish's Torsion Balance Gravitational Apparatus, 1798
1798 (original); 1977 (model)
Resistivity meter by Martin-Clark, Oxford, 1977
1977
Photoenlargement of Tasmanian earthquake
Photoenlargement of seismogram of earthquake
Megger type earth resistance tester, 1929-1932
1929-1932
Sectioned half-scale model of Eötvös torsion balance
1928
Annotated photoenlargement of Yokohama earthquake
Clockwork mechanism for Shaw type seismograph, British, 1930-1935
1930-1935
TI 407 power control unit by Techno Instruments
1964-1967
Dip plotter arm
1948-1950
Peltier Type Electrometer, 1848
1845
Kelvin's second tide predictor, 1873.
1873
Radiobeacon by Aquatronics
Seismochronograph designed by Arnold von Lasaulx, c. 1876
1876
Model for a vane to submerge towed hydrophone streamer
1965
CDA camera-recorder by Seismograph Service
1960-1965
Gravity pendulum by Bailey, R.A.S. No.2
1834
PROBE UNIT MO 30 sea water sound velocity meter
Wooden bracket from the Gravity pendulum by Bailey
1834
Clockwork mechanism for Shaw type seismograph, British, 1930-1935
1930-1935
BC 3 shot blaster by Electro-Tech
1960
Varley's Lightning Protector, 1861
1861