Talk:Joseph Petavel

	Biography portal This article is within the scope of WikiProject Biography, a collaborative effort to create, develop and organize Wikipedia's articles about people. All interested editors are invited to join the project and contribute to the discussion. For instructions on how to use this banner, please refer to the documentation.BiographyWikipedia:WikiProject BiographyTemplate:WikiProject Biographybiography
	This article is supported by the science and academia work group (assessed as Low-importance).

Engineering Low‑importance

	Engineering portal This article is within the scope of WikiProject Engineering, a collaborative effort to improve the coverage of engineering on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.EngineeringWikipedia:WikiProject EngineeringTemplate:WikiProject EngineeringEngineering
Low	This article has been rated as Low-importance on the project's importance scale.

Electrical engineering Low‑importance

	Engineering portal This article is within the scope of WikiProject Electrical engineering, a collaborative effort to improve the coverage of Electrical engineering on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.Electrical engineeringWikipedia:WikiProject Electrical engineeringTemplate:WikiProject Electrical engineeringelectrical engineering
Low	This article has been rated as Low-importance on the project's importance scale.

England Low‑importance

	England portal This article is within the scope of WikiProject England, a collaborative effort to improve the coverage of England on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.EnglandWikipedia:WikiProject EnglandTemplate:WikiProject EnglandEngland-related
Low	This article has been rated as Low-importance on the project's importance scale.

Physics: Biographies Low‑importance

	Physics portal This article is within the scope of WikiProject Physics, a collaborative effort to improve the coverage of Physics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.PhysicsWikipedia:WikiProject PhysicsTemplate:WikiProject Physicsphysics
Low	This article has been rated as Low-importance on the project's importance scale.
	This article is supported by Biographies Taskforce.

Petavel gauge.

The article says "He was the second director of the NPL in Bushy Park from 1919 to 1936, living in Bushy House. During his time there he devised the Petavel gauge for the measurement of the pressures within exploding gases." Well, this is untrue. He developed the gauge in London, just before he left for Manchester University in 1901. See On a Recording Manometer for High Pressure Explosions read 12 September 1900 according to Report of the British Association for the Advancement of Science, 71st meeting page. 768 and J.E. Petavel, 1906, The Pressure of Explosions. Experiments on Solid and Gaseous Explosives. Parts I. and II in Philosophical Transactions of the Royal Society of London. Series A 205 p. 361-365 Episcophagus (talk) 17:13, 8 November 2019 (UTC)[reply]