Journal cover Journal topic
History of Geo- and Space Sciences An open-access journal
Hist. Geo Space. Sci., 8, 1-7, 2017
https://doi.org/10.5194/hgss-8-1-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Review article
04 Jan 2017
Julius Elster and Hans Geitel – Dioscuri of physics and pioneer investigators in atmospheric electricity
Rudolf G. A. Fricke and Kristian Schlegel Wolfenbüttel, Germany
Abstract. Julius Elster and Hans Geitel contributed to the physics at the turn of the 19–20th century in many ways. We first summarize the life of these exceptional scientists. Then – owing to the topic of this journal – we focus on their atmospheric electricity research. With their experiments, careful evaluations and ingenious interpretation, Elster and Geitel made important contributions to precipitation electricity, the influence of solar radiation on the electric state of the atmosphere, the nature of charge carriers and the ionization of air by radioactivity. They proved their experimental skills by inventing new instruments with unprecedented accuracy and reliability. A very modern concept was their attitude to undertake long-term measurements at various locations. A section on their recognition in the physics community and their scientific distinctions concludes the paper.

Citation: Fricke, R. G. A. and Schlegel, K.: Julius Elster and Hans Geitel – Dioscuri of physics and pioneer investigators in atmospheric electricity, Hist. Geo Space. Sci., 8, 1-7, https://doi.org/10.5194/hgss-8-1-2017, 2017.
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Short summary
Between 1880 and 1910 Elster and Geitel made important contributions to atmospheric electricity, in particular to precipitation electricity, the influence of solar radiation on the electric state of the atmosphere, the nature of charge carriers, and the ionization of air by radioactivity. They invented new instruments with unprecedented accuracy and reliability. A very modern concept was their attitude to undertake long-term measurements at various locations.
Between 1880 and 1910 Elster and Geitel made important contributions to atmospheric electricity,...
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