Habashi F
Thomas L.Willson (1860-1915) did not succeed in 1892 to produce aluminum by reduction of Al2 O3 with coal in the electric furnace instead he discovered by accident calcium carbide which produced acetylene on contact with water. Although acetylene had no use at the time but later on it proved to be a very important gas.
English 
Spanish 
Russian 
German 
French 
Japanese 
Portuguese 
Hindi