Dear twitpic community thank you for all the wonderful photos you have taken over the years. we have now placed twitpic in an archived state. link . rsiideqhwk http//www.wovenhope/groups/whatsthebeefthecontestedgovernanceof . Welcome to the scp foundation tales by date archive the contents of this page are currently [unclassified]. personnel are reminded that certain files within this section may be subject to various classifications, and that verified credentials may be necessary to access those files. (click here for bottom) , momentum. utility of the concept of momentum, and the fact of its conservation (in toto for closed system) were discovered by leibniz.. page. equivalently pg. plurals pp. and pgs.