User talk:Cosmo~enwikibooks

Special Relativity
Hi Cosmo, it was my suggested amendment - shown in the diagram - that was incorrect! Your question is a good one. I have not had much time to go over my old notes on this to provide a proper explanation. At the moment the text is similar to most physics textbooks but it really should provide an answer to your question :). RobinH (discuss • contribs) 17:06, 22 May 2013 (UTC)
 * I have rewritten the twin "paradox" section to take account of your comment and stress the symmetry. Many thanks for drawing this to my attention. I would refer you to the Benguigui reference for the most recent academic discussion of the twin "paradox". I have still got a nagging feeling that the article could "do better". RobinH (discuss • contribs) 20:24, 12 August 2013 (UTC)

Your account will be renamed
Hello,

The developer team at Wikimedia is making some changes to how accounts work, as part of our on-going efforts to provide new and better tools for our users like cross-wiki notifications. These changes will mean you have the same account name everywhere. This will let us give you new features that will help you edit and discuss better, and allow more flexible user permissions for tools. One of the side-effects of this is that user accounts will now have to be unique across all 900 Wikimedia wikis. See the announcement for more information.

Unfortunately, your account clashes with another account also called Cosmo. To make sure that both of you can use all Wikimedia projects in future, we have reserved the name Cosmo~enwikibooks that only you will have. If you like it, you don't have to do anything. If you do not like it, you can pick out a different name.

Your account will still work as before, and you will be credited for all your edits made so far, but you will have to use the new account name when you log in.

Sorry for the inconvenience.

Yours, Keegan Peterzell Community Liaison, Wikimedia Foundation 23:06, 17 March 2015 (UTC)

Renamed
 This account has been renamed as part of single-user login finalisation. If you own this account you can |log in using your previous username and password for more information. If you do not like this account's new name, you can choose your own using this form after logging in: . -- Keegan (WMF) (talk) 04:49, 19 April 2015 (UTC)