Johan Christian Falkenberg (8 October 1901 – 12 July 1963) was a Norwegian épée and foil fencer. He competed at three Olympic Games.During the Second World War, Falkenberg was a member of the Norwegian resistance movement, leading Milorg districts 22, 23, 40 and 41 from 1943 onwards. For his service, Falkenberg was awarded the Defence Medal 1940–1945, as well as French and British decorations.
Rudolf Gundlach (1892–1957) was a Polish military engineer, inventor and tank designer. He headed the design division of the Armored Weapons Technical Research Bureau (Biuro Badań Technicznych Broni Pancernych). He held the military rank of major in the Corps of Engineers of the Polish Army.
He was the chief designer of the Ursus wz. 29 armored car and supervised design work for the 7TP light tank and the 10TP fast tank prototype.
David B. Rogers (born March 12, 1974) is an American NASCAR crew chief who works as the performance director for 23XI Racing. He previously worked as a crew chief for Joe Gibbs Racing in both the NASCAR Cup and Xfinity Series as well as the technical director for JGR's Xfinity operations. He has over a decade of experience as a crew chief, all with JGR. Over the course of his career, he has worked in the NASCAR Cup Series and Xfinity Series with drivers Jason Leffler, Denny Hamlin, Aric Almirola, Tony Stewart, Travis Kittleson, J. J. Yeley, Kyle Busch, Joey Logano, Brad Coleman, Matt DiBenedetto, Michael McDowell, Carl Edwards, Daniel Suárez, Matt Tifft, Kyle Benjamin, Riley Herbst, and Daniel Hemric. Hemric and Rogers won the 2021 NASCAR Xfinity Series championship.
Friedrich Wilhelm Eckhardt (25 February 1892 – 9 April 1961) was a German engineer and head of the design office for the Berliner Maschinenbau Aktien Gesellschaft vormals L. Schwartzkopff.
Alfred Jules Belpaire (25 September 1820 – 27 January 1893) was a Belgian locomotive engineer who invented the square-topped Belpaire firebox in 1864.
Belpaire was born in Ostend, and first studied at the Athenaeum School in Antwerp. He then became a student at the École Centrale des Arts et Manufactures in Paris, France from 1837 to 1840 where he obtained a degree in mechanical engineering.
Belpaire was then employed at the Belgian State Railways, where he worked as a mechanical engineer for more than 50 years. He was first director of the railway workshops at Mechelen and then from 1850 put in charge of all materials and based in Brussels. He first developed a firebox to burn poor quality coals and then around 1860 generalised his invention into a robust thermally efficient design which bears his name. His firebox was used in locomotives in his native Belgium and also then extensively in Britain, North America and around the world. The Belpaire firebox had an improved transfer of heat and steam production due to its greater surface area at the top. While attaching it to a boiler was more difficult due to its oblong shape, it had simpler interior bracing as an advantage.
Alfred Belpaire was one of the founders of the Congrès International des Chemins de Fer, of which he was president in 1891.He died in Schaerbeek, aged 72.
Joseph-Albert Deport (September 17, 1846 – November 1, 1926) best known as one of designers of the Canon de 75 modèle 1897.
Georges Augustin Albert Charpy (1 September 1865 – 25 November 1945) was the French scientist who created the Charpy impact test. He attended École Polytechnique from 1885 to 1887 and graduated with a degree in Marine Artillery. In 1887 he became a professor at École Monge. In 1892 he published his physics thesis. In 1920 he became a professor of metallurgy at École Nationale Supérieure des Mines de Paris. In 1922 he became the professor of general chemistry at École Polytechnique.
Édouard Belin (5 March 1876 – 4 March 1963) was a French photographer and inventor. In 1907 Belin invented a phototelegraphic apparatus called the Bélinographe (télestéréographe)—a system for receiving photographs over telephone wires via telegraphic networks.Belin's invention had been used for journalistic photos since 1914, and the process was improved by 1921 to enable transmission of images by radio waves.From 1926, Belin worked on an television apparatus. In 1926, with Holweg, he tested the capacity for the eye to perceive pictures proposed at a very high speed, using a mirror drum.Belin was born in Vesoul, Haute-Saône, France, and died, aged 86, in Territet, Canton of Vaud, Switzerland.
