•---1950-current

__John Barden 1957__ John Barden was born May 23, 1908 in Madison Wisconsin and he died in 1991. His mother died when he was twelve years old due to an illness. At the age of fifteen he entered the University of Wisconsin, where he majored in engineering. In 1928, he received a B.S. and a year later received a M.S. in electrical engineering. When Barden was looking for a job, the depression was going on making it difficult for him to find work. During World War, II he helped the Navy in discovering ways to protect U.S. submarines and ships from mines and torpedo's. In 1957, Barden and two other scientists worked together and they explained super conductivity. His other works, involved topics like electrical conduction in semiconductors and metals, and also the diffusion of atoms in solids. In 1956, and in 1972, he was awarded the Nobel Prize in Physics. This photo from []

__Wiktor Kemula late 1950's__ Wiktor Kemula was born November 6, 1902 in Warsaw and he died in 1985. He was a proffesor of chemistry at Lvov University. His teaching was held up during World War II. Also, he was the head of the Laboratory of physcochenical chemistry analysis in the institute of Physical Chemistry. He developed hanging drop electrode in the late 1950's. Because of his creation there were hundreds of paper written in various fields that this could apply to. The hanging mercury drop tube, is a spherical stationary electrode. A mercury drop is suspended from the tip of glass. The hanging drop electrode could be used for studying mechanisms and types of reactions. This photo from []

__Gerhard Herzberg 1971__ Gerhard Herzberg was born 25 December, 1904 in Humburg Germany and later died in 1999. His father died when he was only ten years of age. Later on his mother was forced to move into the United States where she became a housekeeper. In 1930 Herzberg fled Nazi Germany and moved to Canada. In 1935 he received a position at the University of Saskatchea. By the age of twenty four he had already published twelve papers on atomic and molecular physics. This photo from [] Herzberg's work is mainly with molecular spectroscopy. This is when scientist map and chart characteristics of light molecules that are absorbed and emitted. Because of this you get important information on how molecules are put together. His research is so important because it developed a method of analyzing molecular structure.