vak: (Default)
Serge Vakulenko ([personal profile] vak) wrote2019-12-10 10:42 am

Занимательная физика на войне

Имеется в виду первая мировая война. Библиотечка журнали «Знание - сила», 1930 год.

http://militera.lib.ru/manuals/0/pdf/vnukov_vp01.pdf

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