Pinboard (andrewducker)
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recent bookmarks from andrewduckerWhat if a rainstorm dropped all of its water in a single giant drop?2012-09-24T07:21:57+00:00
http://what-if.xkcd.com/12/
andrewduckerrain physicshttps://pinboard.in/u:andrewducker/b:fa13d0d9b492/