User talk:Vipinvinu

February 2013
Hello, I'm Binksternet. I wanted to let you know that I undid one or more of your recent contributions to Doppler effect because it didn't appear constructive. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks! Binksternet (talk) 16:23, 16 February 2013 (UTC)