vvn33 comments

13-April-2020 Monday
Which doctors should be protected from coronavirus first? Italian experience

04-April-2020 Saturday
Making the simplest protective face mask (visor) against COVID-19

03-April-2020 Friday
How we made electric transport using Soviet asynchronous... Part 1

29-March-2020 Sunday
Homemade crimper from a garden sprayer. Instead of 5000 rubles - only 30!


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