Agree, all these stuff lead to the conclusion that thinner people

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送交者: xj 于 2008-02-21, 12:05:02:

回答: 可能教练不想解释其要主原因由 JJZ 于 2008-02-21, 11:46:57:

will fall in water slower than fat people.

There is nothing wrong of what the coach said.

Ms. Chen is not a dead iron ball.

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你是说空气阻力吗？10米掉下来能有多少区别？我认为微乎其微。 (无内容) - Enlighten (0 bytes) 2008-02-21, 12:11:14 (207181)
- if you drop a iron ball and a wooden ball of the same size, - steven (90 bytes) 2008-02-21, 13:18:54 (207202)
  - 是有区别，但从10米的高度掉下来，肉眼能看清这个区别吗？ (无内容) - smileykingkong (0 bytes) 2008-02-21, 13:50:56 (207208)
    - yes. An even simpler test, rolling two soda cans, one is filled - steven (79 bytes) 2008-02-21, 13:56:26 (207209)
      - 这不一样你的这两个质量跟人体相比都太轻了，收阻力的影响大得多 (无内容) - smileykingkong (0 bytes) 2008-02-21, 14:05:40 (207211)
        
        I thought you meant those balls. (无内容) - steven (0 bytes) 2008-02-21, 15:56:08 (207263)
        
        主要是要控制水花! (无内容) - JJZ (0 bytes) 2008-02-21, 14:41:16 (207223)
- 空气阻力是小事，主要是人体转动了能消耗下降的动量 - xj (35 bytes) 2008-02-21, 12:22:09 (207186)
  - 你哪儿学的？事实是，人体转动不会改变其重心的平均下降动量。 (无内容) - Enlighten (0 bytes) 2008-02-21, 12:27:58 (207189)
  - 不过确实如deadmeat说的，瘦人转起来快，容易完成动作 (无内容) - xj (0 bytes) 2008-02-21, 12:22:58 (207187)
    - yes. that's the ONLY explanation that makes sense. (无内容) - Enlighten (0 bytes) 2008-02-21, 12:28:37 (207190)
      - and that's based on the assumption that added muscle - Enlighten (118 bytes) 2008-02-21, 12:34:39 (207194)

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