User talk:Cosmologydel1

Your recent edits to Physics with Calculus/Mechanics/Fluid Mechanics have been undone. Please do not remove large amounts of text from pages. If you do so without explaining your reasons in the Edit Summary it might be considered vandalism. Read Using Wikibooks for more information about using and editing Wikibooks.--ЗAНИA talk 16:19, 5 April 2014 (UTC)