Скачать или смотреть Can a Cardboard Ball Bearing Work?

Using the cardboard tube from (possibly) saran wrap, it is possible to make a functional bearing? I had to find out! :)

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"How It Begins", "The Lift", "Voice Over Under", "Son of a Rocket" and "Derp Nugget" by Kevin MacLeod (https://incompetech.com)
Licence: CC BY (http://creativecommons.org/licenses/b...)

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