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severákova polívka

asi zelňačka (mainly in czech)

(fork of http://severak.soup.io/)
severak 16.7.2019 09:36:28

Why did we wait so long for the bicycle?

The bicycle, as we know it today, was not invented until the late 1800s. Yet it was a simple mechanical invention. It would seem to require no brilliant inventive insight, and certainly no scientific background.

#history
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