Wall telephone, 1880-1920
1880-1920
Compendium by Elias Allen
1630-1653
Brass earth arrester plates, 1900-1950
1900-1950
One packet of "Mica"
1790-1819
Compendium by Augustine Ryther
1588
Milton Roy kidney machine used for home dialysis
1961-1971
Pre-production model of a Howden HWP 300 Wind Turbine and Landrover
1980-1983
Gaede molecular vacuum pump
1910-1914
Submarine projector liquid compass
1917-1924
Optical cabinet or compendium in wooden mahogany case by Benjamin Martin
1765-1775
Azimuth compass
1840-1860
Gould-type microscope by Cary
1825-1850
Screw-barrel MIcroscope by Edmund Culpeper, 1728-1730
1728-1730
Dent's patent liquid compass with air chamber around rim
1860-1870
Chetwynd liquid compass
1905-1912
Meteorograph, 1886-1903
1886-1903
High power water cooled transmitting valve, 1919-1925
1919-1925
Toy polariscope
1828-1830
Eloin Safety Lamp, 1846-1853
1846-1853
Portable universal equinoctial sundial, in brass,
1588
Nose piece from nasal nitrous oxide apparatus
1871-1930
Cuff type (scroll foot) microscope by James Mann, c. 1755
1750-1760
optical illusion with 3 mica oval slides
circa 1850
KLG Ford spark plug made by Robinhood Engineering Works Ltd.
1920-1930
Frequency indicator vibrating reed meter
1907-1917
Callendar's Bolometer, 1914
1914
Two ivory slides, from Wilson screw barrel microscope
1710-1730
Model of Callendar's Sunshine Receiver, 19th Century
1895-1910
Crookes' radiometer with four aluminium vanes coated on one side with clear mica (No. 4)
1878
Marvin type kite meteorograph, by Schneider Brothers, USA, 1898
1898
simple compass microscope with accessories: five objective lenses
1775-1785
Half-penny surgically removed from child
1914-1930
Crystal of mica in "book" form
Early Platinum Electrical Resistance Thermometer, 1871-1890
1871-1890
Coronal Thermopile, used by Hugh Longbourne Callendar, 1905
1900-1905
Crookes' Radiometer, 1877
1877
Crookes' Radiometer, 1872-1879
1872-1879
Early Platinum Electrical Resistance Thermometer, 1871-1890
1871-1890
Early Platinum Electrical Resistance Thermometer, 1871-1890
1871-1890
New Improved' universal compound microscope with fitted mahogany case
1785-1795
Convection Mill Physics Apparatus, 1919-1928
1919-1928
Aluminium tube heater
1880-1920
combined microscope-telescope with brass cap containing two ivory object plates
1822-1824
Crookes' Radiometer, 1877
1877
Frog's Heart Thermometer, 1887
1887
Wooden statue
Early Platinum Electrical Resistance Thermometer, 1871-1890
1871-1890
Callendar Electrical Temperature Indicator, 1894
1894
Crookes' Radiometer, 1878
1878
Spark gap enclosed in wooden box
1885-1895