User talk:117.192.26.248

September 2009
Welcome to Wikipedia. The recent edit you made to the page Optical cavity 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. --  Phantom Steve  ( Contact Me, My Contribs ) 18:08, 15 September 2009 (UTC)