力，是物理学中一个抽象的概念，然而，它却实在地存在于我们所处的宇宙空间。大到星体的运行轨迹，小到细胞的分裂方向，它像一个隐形的雕刻师，无时无刻不在塑造着客观世界的形态。

片头：《SAGA》 ---Hurray for the Riff Raff

片尾：《Cancel the party》 ---Julie Doiron

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