Marine Timekeeper known as 'H5' by John Harrison and Son 1770
1770
Telescope by Galileo (replica)
1610; 1923
Arkwright's prototype spinning machine, 1769.
1769
Silver microscope by George Adams, c. 1761.
1763
Freud electronic laughing ball
1990-96
Atmospheric Engine by John Smeaton, 1772
1772 (original); 1919 (model)
George III's philosophical table
1761-1762
Pair-cased pocket watch in pinchbeck and leather outer casing with verge escapement
1705-1737
Pocket microscope by Jeremiah Sisson
1752
Clarke's Hydrometer (c. 1755)
1755
Cutter, Alert
1755
Gold amulet in the form of a cobra
2000-100 BCE
George III's pendulum
1762
Etching of an electrically powered garden
1755
Marine chronometer by John Arnold
1771
Section of lightning conductor from St Paul’s cathedral
1769
Neolithic flint scraper
4000-2001 BCE
Mural arc made for King George III
1770
Cutter, Alert
1755
George III's compound engine
1762
Watch movement with remontoir and two balance springs by Thomas Mudge
1755
King George III's friction machine
1762
George III's double-barrelled air pump
1761
Mezzotint portrait of Benjamin Franklin
1762
Wood moulding plane, dated 1771
1771
Hindley's pyrometer and three expansion tubes made by Henry Hindley
1752
Demainbray's model of a camera obscura
1752
Magnetic toy by George Adams
1765
Mahogany cross-piece for an air pump
1761
Model diving bell with 12 sinking weights
before 1753
King George III's central forces machine
1762
George III's Magdeburg hemispheres
1761
model carriage chassis with two axles, 1762
1762
George III's glass sphere
1761
Demainbray's convex mirror
1752
Quarter-repeating watch by Thomas Mudge
1755
George III's cycloidal pendulum
1762
Mezzotint: Portrait of John Arnold
1770
Demainbray's optical model
1752
Perspective drawing apparatus, incomplete, in integral mahogany case
1760-1770
Glass bell jar with a brass collar
1761
George III's tidal demonstration model
1762
Pedometer by Benjamin Grey
1755
Watch with double dial
1760
Demainbray's Archimedean screw
1752
Demainbray's optical model
1752
George III's inclined plane and Horse-way
1762
Model of Hooke's universal joint
1760
George III's weighted cylinder
1762
Octagonal wooden telescope with slot down one side and moveable eyepice
1772-1773