Theory of Relativity The theme of this contest will be the theory of relativity, and in particular the equation [itex]E=mc^2[/itex]. On 27 september 1905, Einstein published the paper in which the famous equation [itex]E=mc^2[/itex] first appears. This contest will end on 15 september. This way we will have enough time to vote the logo before 27 september. The winning logo will be shown on the main page around the 27 september!! (but see Rule 7) Contest Rules: 1. Any logo or doodle that fits the theme will be accepted during the contest period. The contest period will end on 15 september, after which no more logo's will be accepted. 2. The idea is that the logo will replace the prime logo on the main page. This logo has sizes 339x95. Please use the exact same height. Width can be negotiated a bit. Also try to let the logo blend in perfectly with the rest of the site (i.e. it must use roughly the same background for example). You may of course use the current to start with. The current logo can be found at https://www.physicsforums.com/Prime/theme/Prime_Logo.gif [Broken] 3. Upload your logo's to any of the photo servers such as imageshack or photobucket. Then post it the relevant contest thread and link your picture using the img command. PM me if you do not know how. Greg may request the "unflattened" version for optimization (PSD file). 4. Multiple submissions per member are allowed. But note that once a logo is posted, it cannot be changed other than a total withdrawal. 5. At the end of the contest period, I will open a poll and every PF member can vote for the logo they like best. 6. Note that in case we have a large number of entries, I will do the polling in more than one thread. If that's the case, you can vote in each of the polling threads. The photos will be assigned in the polling threads in the order they were submitted. 7. The choice of whether we actually use the logo in the site is completely up to Greg. So even if the logo wins in the polls, it may still happen that it is not shown on the main page, or that another logo is shown. 8. Cooperating with other members or with non-members is allowed for making a logo. But eventually, the member who posts the photo must have had some creative input in the logo. I have no way of checking if you did this, so we'll go by the honor system. 9. You can use a logo only once. Once it is used in a contest, it cannot be reused in another contest. Good luck everybody!!