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發表於 2008-11-23 01:01 PM
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回應 MagicAndy 第 1 篇文章
1 weight 6 ping pongs with another 6 ping pongs. see which side is heavier
) H- K5 e7 A! e, r2 spilt the heavier side ping pongs in half and weight against each other公仔箱論壇0 g! p% j( F& w
3 weiht either ping pongs one on one then you will know which is the heavy one. |
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