26 Oct 2014
from Sterre en Planete Hosted by RSG
Wat is die spoed van 'n komeet? Wat bepaal die spoed? Waarom is die relatiewe snelhede van planete om sonne verskillend? Wat sê Keppler se wet oor die verskynsel.
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This episode is 29 minutes long.
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This episode was published on October 26, 2014.
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