User talk:Greg4242

May 2010
Welcome to Wikipedia. The recent edit that you made to the page Fiber-optic communication has been reverted, as it appears to be unconstructive. Please use the sandbox for testing any edits; 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 for further information. Thank you. Favonian (talk) 15:30, 12 May 2010 (UTC)

This is the only warning you will receive regarding your disruptive edits. If you vandalize Wikipedia again, you may be blocked from editing without further notice. --John (talk) 15:32, 12 May 2010 (UTC)