Born in Radon, Orne, and living most of his life in Lezardrieux, Le Flem studied at the Schola Cantorum under Vincent d'Indy and Albert Roussel, later teaching at the same establishment, where his pupils included Erik Satie and André Jolivet.
The concentration in the air at the (unventilated) Gastein Healing Gallery averages 43 kBq/m3 (1.2 nCi/L) with maximal value of 160 kBq/m3 (4.3 nCi/L).
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Radioactive water baths have been applied since 1906 in Jáchymov, Czech Republic, but even before radon discovery they were used in Bad Gastein, Austria.
radon | Radon, Orne | Johann Radon |
Many years ago radium-226 and radon-222 sources were used as gamma-ray sources for industrial radiography: for instance a radon-222 source was used to examine the mechanisms inside an unexploded V-1 flying bomb, while some of the early Bathyspheres could be examined using radium-226 to check for cracks.
Although it would appear that Johann Radon was one of the first to make significant use of this property in 1913, M. I. Kadets and V. L. Klee also used versions of the Radon–Riesz property to make advancements in Banach space theory in the late 1920s.
In 2011 Radon and SOOPA released Mackay's new album Sometimes Like This I Talk which features other members of The Stooges, and also the album Machine Gun from U.S.S. with Mackay on sax.
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Radon released the Smegma - Mackay collaboration album 30 Years of Service in 2005, his full-length album Michigan and Arcturus (2006), a vinyl-only release with The Radon Ensemble entitled "Tunnel Diner", and in 2008 Resipiscent released Smegma's Live 2004 featuring Mackay and Jello Biafra.