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| Title | Letter from Victor Franz Hess to Stefan Meyer |
| Original | © Fordham University, New York City, NY USA |
| Editing | ©Victor-Franz-Hess-Gesellschaft Pöllau |
| Content | Hess writes Meyer about his work on a constant called Eve’s number, which is important for radiation measurements. For this work he needed radium samples from Meyer. He states that he could also send him emanation tubes as an alternative. He further describes the experiments about Eve’s number he is planning. He then explains Meyer some recipe, that Meyer wanted to know. Further he writes that for Benndorfs birthday, nothing has been planned yet. He plans to talk to Kohlrausch about it and asks Meyer what ideas he has. Lastly, he asks Meyer to tell Schweidler about his work with O’Brolchain. He describes the methods he was using for measuring radioactive decay constants. |
| Notes | – Corker: means very good, excellent – -Emanation: is a term used to describe the release of material in non-solid or liquid form from mostly solid source compounds, https://de.wikipedia.org/wiki/Emanation_(Physik) (retrieved 20.10.2025) – Eve’sche Zahl: = Ionisation by the gamma rays of the Ra C quantity equivalent to 1 g of radium, calculated at a distance of 1 m from the point source of radiation. https://www.zobodat.at/pdf/SBAWW_138_2a_0169-0221.pdf (retrieved 21.10.2025) – Ph. ZS.: Physikalische Zeitschrift, article published in: Victor. F. Hess and A. Reitz, Zur Kapazitätsbestimmung von Strahlungsapparaten, Phys. ZS. 31, 284-288,1930. – Verschwindungs-Konstante β: = diminution constant |
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