Thread: How much time will clip on aero bars shave?
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Old 05-07-11 | 04:13 PM
  #29  
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AdelaaR
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From: Vlaamse Ardennen, Belgium
Originally Posted by taos07
Sound has to be perceived to exist, otherwise, it is just vibration.
Maybe the trees themselves hear the sound ... there's always trees in a forest i was told
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