File:Pierre and Marie Curie.jpg
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Danasîn
[biguhêre]DanasînPierre and Marie Curie.jpg |
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. |
Dîrok |
circa 1904 date QS:P,+1904-00-00T00:00:00Z/9,P1480,Q5727902 |
Çavkanî | hp.ujf.cas.cz (uploader=--Kuebi 18:28, 10 April 2007 (UTC)) |
Xwedî | Unknown authorUnknown author |
Lîsans
[biguhêre]Public domainPublic domainfalsefalse |
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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Dîrok/Katjimêr | Wêneyê biçûk | Mezinahî | Bikarhêner | Şirove | |
---|---|---|---|---|---|
niha | 08:01, 14 gulan 2014 | 2163 x 1740 (1,07 MB) | Materialscientist (gotûbêj | beşdarî) | crop | |
07:57, 14 gulan 2014 | 3210 x 2196 (1,9 MB) | Materialscientist (gotûbêj | beşdarî) | Original | ||
05:17, 27 tîrmeh 2012 | 2982 x 2186 (1020 KB) | Materialscientist (gotûbêj | beşdarî) | better version | ||
14:29, 2 hezîran 2008 | 2624 x 1640 (2,98 MB) | CarlFromVienna (gotûbêj | beşdarî) | Eine manuell überarbeitete Version des bekannten Fotos. Details wurden nachgezeichnet zum Abdruck im Reclam-Heftchen nachbearbeitet (also nicht von mir). | ||
18:28, 10 nîsan 2007 | 1600 x 1091 (161 KB) | Kuebi (gotûbêj | beşdarî) | {{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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- Marie Curie
- 20. April
- Radioaktivität
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- Wikipedia Diskussion:Hauptseite/Artikel des Tages/Archiv/Vorschläge/2009
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