Section of lightning conductor from St Paul’s cathedral
1769
William Thomson's Tide Predicting Machine, 1872
1872
Samples of wire struck by lightning
Rainwater pipes bonded together
Photoenlargement of seismogram of earthquake
Air terminal with grooved lead joint attachment for horizontal lightning conductor
1905
Piece of signal wire and piece of block wire
Portions of lead flashing from roof
Hedges and Lowrie-Hall vacuum earthing device
Original Lodge lightning protector
Tide gauge recording unit
Kelvin's second tide predictor, 1873.
1873
Seismochronograph designed by Arnold von Lasaulx, c. 1876
1876
Three electric alarm bells
PROBE UNIT MO 30 sea water sound velocity meter
CDA camera-recorder by Seismograph Service
1960-1965
MP 8 swamp and marine geophone, 21x5 diam cm
Radiobeacon by Aquatronics
Strong motion seismograph
1971-1980
GAA reflection geophone
1950
BC 3 shot blaster by Electro-Tech
1960
Geophone, sectioned, c.1955
1955
Model for a vane to submerge towed hydrophone streamer
1965
TI 407 power control unit by Techno Instruments
1964-1967
Dip plotter arm
1948-1950
Tellohm resistivity meter by Nash and Thompson Ltd.
1960
Solid State Seismometer
Scrase altielectrograph, 1937
1937
Wooden bracket from the Gravity pendulum by Bailey
1834
Three brass screws from the Gravity pendulum by Bailey
1834
Gravity pendulum by Bailey, R.A.S. No.2
1834
Megger type earth resistance tester, 1929-1932
1929-1932
Clockwork mechanism for Shaw type seismograph, British, 1930-1935
1930-1935
Replica of Lightning Conductor by Benjamin Franklin, United States, 1730-1760
1730-1760 (original); 1931-1939 (replica)
Peltier Type Electrometer, 1848
1845
Varley's Lightning Protector, 1861
1861
Clockwork mechanism for Shaw type seismograph, British, 1930-1935
1930-1935
Holweck-Lejay inverted pendulum gravimeter
1934
Non-polarizing electrode, for spontaneous polarisation measurements
1931
Holweck-Lejay inverted pendulum gravimeter
1934
Rubidium-Vapour Magnetometer Sensor, 1968-1972
1968-1972
Resistivity meter by Martin-Clark, Oxford, 1977
1977
Model of the Zhang Heng seismoscope
132 CE
Model of Henry Cavendish's Torsion Balance Gravitational Apparatus, 1798
1798 (original); 1977 (model)
Potentiometer, for spontaneous polarisation measurements
1931
Mintrop field seismograph, recording apparatus and box, for geophysical prospecting
1921
Sectioned half-scale model of Eötvös torsion balance
1928
Eötvös torsion balance for geophysical prospecting by Süss Nandor
1920
Model of Halley V Antarctic research station, 1999
1999
