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3 days ago · 1813: Ironstone china invented by Charles James Mason (1791–1856). Clock making Anchor escapement, c. 1657. Anglo-Saxon times: type of candle clock invented by Alfred the Great (849–899). c. 1657: Anchor escapement probably invented by Robert Hooke (1635–1703). c. 1657: Balance spring added to balance wheel by Robert Hooke (1635–1703).
1 day ago · Charles Thomson (1729–1824), proprietor of Harriton House built in 1740s and on whose lands Harriton High School is sited. Thomson was secretary (1774–1789) of the first and second Continental Congress as well as convention to debate and negotiate the Constitution of the United States.
- 50 acres (200,000 m²)
- "Carpe Diem"
- 1958
- Scott Weinstein
3 days ago · It is believed the "PNP" in his signature stands for "Professor of Natural Philosophy". Kelvin also wrote under the pseudonym "P. Q. R." William Thomson, 1st Baron Kelvin, OM, GCVO, PC, FRS, FRSE (26 June 1824 – 17 December 1907) [7] was a British mathematician, mathematical physicist and engineer born in Belfast. [8]
Apr 23, 2024 · electromagnetism. energy. heat. laws of thermodynamics. William Thomson, Baron Kelvin (born June 26, 1824, Belfast, County Antrim, Ireland [now in Northern Ireland]—died December 17, 1907, Netherhall, near Largs, Ayrshire, Scotland) was a Scottish engineer, mathematician, and physicist who profoundly influenced the scientific thought of his ...
Apr 17, 2024 · Listed in this table are the qualifying ancestors—those whose residency in Pennsylvania falls within one of the required time periods—from First Families applications approved to date. Inclusion of an ancestral name is acceptable proof of residency for future applications. Please note that this list is not exclusive.
Apr 10, 2024 · Charles Poulett Thomson, Baron Sydenham was a merchant and statesman who, as British governor general of Canada in 1839–41, helped to develop that country’s basic institutions of government. The son of a merchant, Thomson joined the St. Petersburg office of his father’s firm at age 16.
Apr 25, 2024 · August 1765–c. 1774. The Sons of Liberty was a radical organization in Colonial America created to carry out public demonstrations against British policies that forced Americans to pay taxes without representation in Parliament. Many men associated with the group are considered Founding Fathers of the United States.
