Talk:Henri Becquerel

message: The section describing Becquerel's method to the French Academy must be in error.  The entire point was to demonstrate that the uranium salts absorb xrays and re-emit them, thus shadowing the photographic plate. If Becquerel put the entire package on the windowsill, then the xrays from the sun would darken the photographic plate along with the "absorbed" xrays in the uranium salts and his experiment would be entirely black, proving nothing.  I think the reality is that he put the uranium on the windowsill, then sat the uranium salt slab on the photographic plate where it would, supposedly, re-emit the suns xrays and darken the plate. Yes?
http://www.practicalphysics.org/go/Resources_12.html
Wesolson123 (talk) 02:03, 12 December 2009 (UTC)
thread_title:  The Plates Weren't on the Windowsill 

message: Henri Becquerel did not discover "evidence of" radioactivity. He discovered radioactivity, full stop. 94.175.102.211 (talk) 16:21, 14 September 2023 (UTC)
thread_title:  Discoverer 

message: I have uploaded a higher-resolution version of the Becquerel plate, and included its attribution. Would someone be kind enough to make the swap the old one out? (Technically the author of the image died 98 years ago as of 2006, not 100, but that should be good enough for the spirit of the law, no?)
http://en.wikipedia.org/wiki/Image:Becquerel-plate-01.png
Thangalin 02:37, 29 December 2006 (UTC)
thread_title:  Photographic Plate 

message: At the centuary  of the discovery and shortly after several overview papers have been published:
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--Stone 16:23, 20 March 2007 (UTC)
thread_title:  References

message: On the main page the date 24 January appears, this is possibly a mistake, as the first report on X-rays were given on 20 January in The French academy of Sciences.
Becquerel presented a paper on 24 February, which is the correct date to use.  —Preceding unsigned comment added by 194.47.37.88 (talk) 08:06, 17 October 2007 (UTC)
thread_title:  Dating in text. 

message: In this article "École Polytechnique", "École des Ponts et Chaussées", and "Muséum National d'Histoire Naturelle" are all italicized. Is this correct? I did not think names of places were supposed to be italicized, but only names of works. –bse3 (talk • contribs • &site=  count • [ logs]) 02:52, 21 October 2007 (UTC)
replies: text: I am quite sure that I am right, so I changed it. Wikipedia:Manual of Style#Institutions seems to support this. –bse3 (talk • contribs • &site=  count • [ logs]) 02:59, 21 October 2007 (UTC)
thread_title:  Italics 

message: This article was automatically assessed because at least one WikiProject had rated the article as start, and the rating on other projects was brought up to start class. BetacommandBot 09:44, 10 November 2007 (UTC)
thread_title:  WikiProject class rating

message: What did M. Becquerel die of? Relating to his 1903 Nobel prize in physics, was it as prosaic as M Curie's street accident, or closer to Mme Curie's radiation-induced disease? 71.234.215.133 (talk) 09:10, 7 March 2010 (UTC)
replies: text: I think his death was directly attributable to him ceasing to live, but I'll dig a little further. Billyshiverstick (talk) 07:28, 18 July 2023 (UTC)
thread_title:  Cause of death 

message: Are the circumstances or cause of his death known? 125.253.96.174 (talk) 04:39, 19 November 2012 (UTC)
thread_title:  Circumstances of his death 

message: The radioactivity emissions of uranium were initially confused with infrared light emissions. And in Dr. Gustave Le Bon's book "The evolution of matter" he says that after the discovery of the radioactivity phenomenon Dr Becquerel spent 3 years trying to prove that the radiation of uranium could be "polarized, refracted, and reflected". This was later determined not to be the case, which Dr Becquerel later acknowledged in 1900.WFPM (talk) 01:58, 28 November 2012 (UTC)
thread_title: Initial confusion as to uranium radiation properties

message: I will be adding to the early career section, creating a sub section titled "later career", and restructuring the honors and awards section. Cole Phinney (talk) 15:09, 6 April 2018 (UTC)
thread_title: Changes

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thread_title:  External links modified 

message: Hello! This is to let editors know that :File:Paul Nadar_-_Henri_Becquerel.jpg, a featured picture used in this article, has been selected as the English Wikipedia's picture of the day (POTD) for July 18, 2023. A preview of the POTD is displayed below and can be edited at Template:POTD/2023-07-18. For the greater benefit of readers, any potential improvements or maintenance that could benefit the quality of this article should be done before its scheduled appearance on the Main Page.  If you have any concerns, please place a message at Wikipedia talk:Picture of the day. Thank you!  — Amakuru (talk) 13:57, 10 July 2023 (UTC)
thread_title:  Featured picture scheduled for POTD