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purplenip's shared posts
activity:
activity
·
time
Travel times across the US from 1800 onwards
cliffelam
14
cliffelam
mnn.com
·
#travel
·
#history
Dunbar's number: 150. The number of people we can share meaningful relationships with.
illasinsick
10
teenagewangst
businessweek.com
·
#thehumancondition
·
#anthropology
This Is The World's First Entirely 3D-Printed Gun
kleinbl00
20
forwardslash
forbes.com
·
#guns
·
#technology
·
#3dprinting
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