RT @ZonePhysics: Each ball is traveling in a straight line but together they circulating https://t.co/SE0eyYV47Y 0 atbildes

Māris Bezmers
(2019-11-02 13:00:44)
@twitter
RT @ZonePhysics: Each ball is traveling in a straight line but together they circulating https://t.co/SE0eyYV47Y

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