User talk:Sefog

From Wikipedia, the free encyclopedia

Contents

[edit] Crab userbox

The crab is one to be worshipped :D, great userbox 172.212.19.121 20:34, 15 February 2007 (UTC)

[edit] Thanks!

thanks! The crab does rule! Sefog 21:12, 16 February 2007 (UTC)

[edit] edit to Feynman diagram

I hate to say it, but in the article on Feynman diagram you replaced a perfectly good diagram of beta decay with a really ugly one. I'm tempted to revert it, but I will defer for now.
Josh Thompson 23:56, 16 February 2007 (UTC)

    • You can change it back if you really feel the previous diagram was fine, but I believe if you look at the arrow showing the direction of the electron neutrino is going backwards in time, which is impossible. If you can prove that I am wrong, you can revert as much as you like. Sefog 12:22, 18 February 2007 (UTC)
I never got around to changing it, but somebody else did. For the record, I looked up beta decay in two introductory particle physics books. One book had it the way you didn't like (antineutrino with backwards time arrow). Another book was more pedantic about it and showed a neutrino moving backwards in time (which is in fact more correct). —The preceding unsigned comment was added by Joshmt (talk • contribs) 07:33, 8 March 2007 (UTC). Josh Thompson 07:33, 8 March 2007 (UTC)
Well I guess I can't contend to three different sources, however, I think it's impossible to determine which way Feynmann wanted his diagrams to be interpreted.

[edit] Disputed fair use rationale for Image:Jagd.jpg

Thanks for uploading Image:Jagd.jpg. However, there is a concern that the rationale you have provided for using this image under "fair use" may be invalid. Please read the instructions at Wikipedia:Non-free content carefully, then go to the image description page and clarify why you think the image qualifies for fair use. Using one of the templates at Wikipedia:Fair use rationale guideline is an easy way to ensure that your image is in compliance with Wikipedia policy, but remember that you must complete the template. Do not simply insert a blank template on an image page.

If it is determined that the image does not qualify under fair use, it will be deleted within a couple of days according to our criteria for speedy deletion. If you have any questions please ask them at the media copyright questions page. Thank you.BetacommandBot 03:04, 29 September 2007 (UTC)