DIY大聖歸來重力滾輪

SKU: 211STK01
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SKU: 211STK01 Categories: ,

描述

原理:萬有引力

萬有引力,全稱爲“萬有引力定律”,爲物體間相互作用的壹條定律,1687年爲牛頓所發現。任何物體之間都有相互吸引力,這個力的大小與各個物體的質量成正比例,而與它們之間的距離的平方成反比。

 

尺寸:4*2.3cm  23.5*7.3*16.7cm

材質:多材質

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