Johann Wilhelm Hittorf

Johann Wilhelm Hittorf (March 27, 1824 – November 28, 1914) was a German physicist who was born in Bonn and died in Münster, Germany. He was the first to compute the electric capacity of charged atoms and molecules (ions).

https://www.cambridge.org/core/journals/british-journal-for-the-history-of-science/article/abs/johann-wilhelm-hittorf-and-the-material-culture-of-nineteenthcentury-gas-discharge-research/82D6CB70E783CFF7A993DAFE8219F1F2
Category:1914 deaths
Category:1824 births
Category:German physicists
Category:Scientists from Bonn