5/7/10
Post date: May 07, 2010 7:54:29 PM
Bell Ringer: Why aren't Rube Goldberg machines used in common applications?
Work time for Rube Goldberg machines (due monday)
Bill Nye - simple machines
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Post date: May 07, 2010 7:54:29 PM
Bell Ringer: Why aren't Rube Goldberg machines used in common applications?
Work time for Rube Goldberg machines (due monday)
Bill Nye - simple machines