ParisParis (ˈpærɪs; paʁi) is the capital and most populous city of France, with an official estimated population of 2,102,650 residents as of 1 January 2023 in an area of more than , making it the fourth-most populated city in the European Union as well as the 30th most densely populated city in the world in 2022. Since the 17th century, Paris has been one of the world's major centres of finance, diplomacy, commerce, culture, fashion, gastronomy and many areas.
QuebecQuebec (k(w)ɪˈbɛk ; kwəˈbɛk ; Québec kebɛk) is one of the thirteen provinces and territories of Canada. It is the largest province by area and the second-largest by population. Much of the population of Quebec lives in urban areas along the St. Lawrence River, between its most populous city, Montreal, and the provincial capital, Quebec City. The province is the home of the Québécois nation.
CherbourgCherbourg is a former commune and subprefecture located at the northern end of the Cotentin peninsula in the northwestern French department of Manche. It was merged into the commune of Cherbourg-Octeville on 28 February 2000, which was merged into the new commune of Cherbourg-en-Cotentin on 1 January 2016. Cherbourg is protected by Cherbourg Harbour, between La Hague and Val de Saire, and the city has been a strategic position over the centuries, disputed between the English and French.
CharleroiCharleroi (UKˈʃɑːrlə.rwʌ, US-rɔɪ,_-rwɑː, ʃaʁləʁwa; Tchålerwè tʃɑːlɛʀwɛ) is a city and a municipality of Wallonia, located in the province of Hainaut, Belgium. The city is situated in the valley of the Sambre, in the south-west of Belgium, not far from border with France. By 1 January 2008, the total population of Charleroi was 201,593. The metropolitan area, including the outer commuter zone, covers an area of with a total population of 522,522 by 1 January 2008, ranking it as the 5th most populous in Belgium after Brussels, Antwerp, Liège, and Ghent.
Lorentz ether theoryWhat is now often called Lorentz ether theory (LET) has its roots in Hendrik Lorentz's "theory of electrons", which marked the end of the development of the classical aether theories at the end of the 19th and at the beginning of the 20th century. Lorentz's initial theory was created between 1892 and 1895 and was based on removing assumptions about aether motion. It explained the failure of the negative aether drift experiments to first order in v/c by introducing an auxiliary variable called "local time" for connecting systems at rest and in motion in the aether.
AmiensAmiens (English: æˈmjæ̃ or ˈæmiənz ; amjɛ̃; Anmien, Anmiens or Anmyin) is a city and commune in northern France, located north of Paris and south-west of Lille. It is the capital of the Somme department in the region of Hauts-de-France and had a population of 135,429, as of 2021. A central landmark of the city is Amiens Cathedral, the largest Gothic cathedral in France. Amiens also has one of the largest university hospitals in France, with a capacity of 1,200 beds.
Henri PoincaréJules Henri Poincaré (UKˈpwæ̃kɑreɪ, ; ɑ̃ʁi pwɛ̃kaʁe; 29 April 1854 - 17 July 1912) was a French mathematician, theoretical physicist, engineer, and philosopher of science. He is often described as a polymath, and in mathematics as "The Last Universalist", since he excelled in all fields of the discipline as it existed during his lifetime. As a mathematician and physicist, he made many original fundamental contributions to pure and applied mathematics, mathematical physics, and celestial mechanics.
