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Pennod 3

Heddiw: defnyddio bwyd i bweru cloc a phiano, ac eich dyfeisiau chi i'r dyfodol. More experiments, including which sport balls bounce highest when dropped from a crane in the Big Bang?

12 o ddyddiau ar 么l i wylio

14 o funudau

Darllediad diwethaf

Maw 4 Maw 2025 17:05

Darllediadau

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