Vaizdas:Pierre and Marie Curie.jpg

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Šis failas yra patalpintas bendrojoje Vikimedijos saugykloje – Vikitekoje

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Aprašymas

Pierre and Maria Skłodowska-Curie in the laboratory, demonstrating the experimental apparatus used to detect the ionsation of air, and hence the radioactivity, of samples of purified ore which enabled their discovery of radium.

Maria is operating the apparatus. With her right hand she is adding/subtracting known weights from a pan hanging from a strip of piezo-electric material which generates a very small elecrical charge (of the order of picoamperes) according to the weight hung on it. This is nulled against the charge accumulated on an ion chamber due to radioactivity. In her left hand she has a stopwatch to measure the rate of change of charge using a quadrant electrometer. When the weight is changed, the time elapsed for the charge to be nulled is measured by the stopwatch. The charge is indicated by a light spot on the scale in front of her projected by the quadrant electrometer, which is off the left of the picture.
Data circa 1904 m.
date QS:P,+1904-00-00T00:00:00Z/9,P1480,Q5727902
Šaltinis hp.ujf.cas.cz (uploader=--Kuebi 18:28, 10 April 2007 (UTC))
Autorius NežinomaUnknown author

Licencija

Public domain
Public domain
The copyright of this image has expired in the European Union because it was published more than 70 years ago without a public claim of authorship (anonymous or pseudonymous), and no subsequent claim of authorship was made in the 70 years following its first publication.
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Data/LaikasMiniatiūraMatmenysNaudotojasPaaiškinimas
dabartinis11:01, 14 gegužės 2014Versijos 11:01, 14 gegužės 2014 miniatiūra2 163 × 1 740 (1,07 MiB)Materialscientistcrop
10:57, 14 gegužės 2014Versijos 10:57, 14 gegužės 2014 miniatiūra3 210 × 2 196 (1,9 MiB)MaterialscientistOriginal
08:17, 27 liepos 2012Versijos 08:17, 27 liepos 2012 miniatiūra2 982 × 2 186 (1 020 KiB)Materialscientistbetter version
17:29, 2 birželio 2008Versijos 17:29, 2 birželio 2008 miniatiūra2 624 × 1 640 (2,98 MiB)CarlFromViennaEine manuell überarbeitete Version des bekannten Fotos. Details wurden nachgezeichnet zum Abdruck im Reclam-Heftchen nachbearbeitet (also nicht von mir).
21:28, 10 balandžio 2007Versijos 21:28, 10 balandžio 2007 miniatiūra1 600 × 1 091 (161 KiB)Kuebi{{Information |Description=Pierre and Marie Curie in the laboratory. Prior 1907. |Source= hp.ujf.cas.cz (uploader=--~~~~) |Date=prior 1907, because Pierre Curie died in 1906 |Author=unknown }}

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