User talk:Qwertasdasdqw

September 2009
Welcome to Wikipedia. The recent edit you made to the page Heavy water has been reverted, as it appears to be unconstructive. Use the sandbox for testing; if you believe the edit was constructive, please ensure that you provide an informative edit summary. You may also wish to read the introduction to editing. Thank you. Alan (talk) 18:21, 6 September 2009 (UTC)