User talk:68.229.43.164

October 2011
Hello and welcome! I edit Wikipedia too, under the username Marek69. Wikipedia is written by people like you and me, so thank you for taking the time to participate. I wanted to let you know that I undid one of your recent contributions, such as the one you made to Speed of sound with this edit, because it didn’t appear constructive to me. If you think I made a mistake, or if you have any questions about editing, you can leave me a message on my talk page. Thanks! Marek. 69  talk  03:19, 5 October 2011 (UTC)