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Uploaded by DesignSquadNation on Mar 8, 2011
In this Design Squad Nation animation, Judy explains how the use of small steel balls can decrease friction and increase efficiency in a bearing, allowing a wheel to spin freely. For more Design Squad Nation fo to http://pbskids.org/designsquad
Science & Technology
Standard YouTube License
Just loved it , simple and so attractive...
Many Thanks !
God bless you
punjabpolice911 6 months ago 4
balls O steel
techdude1876 1 month ago
lol 1 comment
PYROSAMable 5 months ago
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Just loved it , simple and so attractive...
Many Thanks !
God bless you
punjabpolice911 6 months ago 4