Scienza, Cultura, Storia, Intelligence

Spazio e viaggi spaziali (1,156 posts, to: 4/20/2018 3:36 AM)
Scienza e tecnologia (743 posts, to: 4/10/2019 9:17 PM)
Culture e Diversità (14 posts, to: 11/28/2013 9:43 AM)
Storia e intelligence (235 posts, to: 3/9/2017 8:29 PM)
Psicologia (35 posts, to: 5/14/2016 3:53 PM)
Civiltà passate (143 posts, to: 12/8/2014 11:10 AM)
Aviazione (73 posts, to: 10/15/2012 9:39 PM)
Robotica (62 posts, to: 2/19/2013 8:41 PM)
Geopolitica (154 posts, to: 1/16/2016 6:21 PM)
Clima (324 posts, to: 3/1/2016 10:25 PM)
Simbologia e Simbolismi (67 posts, to: 9/17/2015 3:01 AM)

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