papapavel posts, page 2
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06-December-2021 Monday
Personalization of interests is a framework for development
13-October-2020 Tuesday
An inconvenient question: “Why do our language have four symbols for multiplication?”
18-July-2018 Wednesday
Explosion of a pneumocylinder in a spring at 5 atm. Enchanting! It is better not to stand nearby (video).
19-November-2017 Sunday
Objectivity is a look at the "elephant" from different angles
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