File:Upsilon peak.jpg

A plot of the peak for the discovery of the upsilon particle. From http://history.fnal.gov/VCSummer1977_pic2b.html -- SCZenz 12:03, 16 January 2007 (UTC)

此檔案不具有著作權，屬於公有領域，因為其所包含之内容均為公共財產且沒有明確的原始作者資訊。

After discussion here (see in particular the conclusions), it would appear that this plot, which is a standard presentation of data about the laws of nature, is not eligible for copyright under U.S. law because the image itself does not involve creative work. (This is not to say that an extraordinary amount of intelligence and effort didn't go into the production of the plot, but this apparently is not what's important.) If someone believes this evaluation is incorrect, please let me know by leaving a message at my English Wikipedia talk page. -- SCZenz 15:22, 28 January 2007 (UTC)