Abel Posse
Abel Parentini Posse was born on 7 January 1934, in the Argentine city of Córdoba where he only lived the first two years of his life. Two years after birth the family moved to the capital city of Buenos Aires due to his father's work commitments. His mother, Elba Alicia Posse, belonged to the creole landed oligarchy of Galician descent who held vast sugar mill estates in the North West province of Tucuman. Amongst the influential members of the Posse clan in the 19th century, the liberal Julio Argentino Roca stands out, twice president of the republic from 1880 to 1886 and also 1898 to 1904 (3). Posse fictionalized 19th century Tucuman in his novel El inquietante día de la vida (2001), where two distant family relatives are the protagonists; his maternal great-grandfather, Felipe Segundo Posse, and Julio Victor Posse, patron of the arts in the sugar producing province until the 1940s.
Frederick Abel
One of the most important of his investigations had to do with the manufacture of guncotton, and he developed a process, consisting essentially of reducing the nitrated cotton to fine pulp, which enabled it to be safely manufactured and at the same time yielded the product in a form that increased its usefulness. This work to an important extent prepared the way for the "smokeless powders" which came into general use towards the end of the 19th century; cordite, the type adopted by the British government in 1891, was invented jointly by him and Sir James Dewar. He and Dewar were unsuccessfully sued by Alfred Nobel over infringement of Nobel's patent for a similar explosive called ballistite, the case finally being resolved in the House of Lords in 1895. He also extensively researched the behaviour of black powder when ignited, with the Scottish physicist Sir Andrew Noble. At the request of the British government, he devised the Abel test, a means of determining the flash point of petroleum products. His first instrument, the open-test apparatus, was specified in an Act of Parliament in 1868 for officially specifying petroleum products. It was superseded in August 1879 by the much more reliable Abel close-test instrument. Under his leadership, first, guncotton was developed at Waltham Abbey Royal Gunpowder Mills, patented in 1865, then, the propellant cordite, patented in 1889. In electricity, Abel studied the construction of electrical fuses and other applications of electricity to warlike purposes, and his work on problems of steel manufacture won him in 1897 the Bessemer medal of the Iron and Steel Institute, of which from 1891 to 1893 he was president.