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File:Liquid hydrogen bubblechamber.jpg

English: First tracks observed in liquid hydrogen bubble chamber by John Wood, 1954.
Français : Premières traces (trainées de bulles) observées dans une chambre à bulle, dans de l'hydrogène liquide, par John Wood, en 1954.

Source: english wikipedia, original upload 25 December 2004 by Deglr6328

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