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1.
Postal Experiments (2000)
(
improbable.com
)
1 point
by
psutor
on Feb 17, 2016
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past
2.
High School Students Solve "Ketchup Water" Problem with 3D-Printed Cap
(
kcpt.org
)
2 points
by
psutor
on April 30, 2014
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past
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