1955: First accurate atomic clock invented by Louis Essen (1908–1997).1923: Self-winding watch invented by John Harwood (1893–1964).1761: First true Marine chronometer perfected by John Harrison (1693–1776).1755: Lever escapement, the greatest single improvement ever applied to pocket watches, invented by Thomas Mudge (1715–1794). 1726: Gridiron pendulum invented by John Harrison (1693–1776). 1722: Grasshopper escapement invented by John Harrison (1693–1776) Harrison created the H1, H2, H3 & H4 watches (to solve the longitude measurement problem). 1657: Balance spring added to balance wheel by Robert Hooke (1635–1703). 1657: Anchor escapement probably invented by Robert Hooke (1635–1703). Anglo-Saxon times: type of candle clock invented by Alfred the Great (849–899).1813: Ironstone china invented by Charles James Mason (1791–1856).1770s: Jasperware developed by Josiah Wedgwood (1730–1795).Frye's rivals at Chelsea porcelain factory. 1710–1762), of Bow porcelain factory, London. 1748: Fine porcelain developed by Thomas Frye (c.1930s onwards: Developments in dairy farming systems pioneered by Rex Paterson (1902–1978).
1901: First commercially successful light farm- tractor invented by Dan Albone (1860–1906).1850s: Steam-driven ploughing engine invented by John Fowler (1826–1864).1842: Superphosphate or chemical fertilizer developed by John Bennet Lawes (1814–1900).1780s: Selective breeding and artificial selection pioneered by Robert Bakewell (1725–1795).18th century: of the horse-drawn hoe and scarifier by Jethro Tull.1627: Publication of first experiments in Water desalination and filtration by Sir Francis Bacon (1561–1626).Jethro Tull, improved the seed drill in 1701