From: tkoenig@netcologne.de   
      
   Jos Bergervoet  schrieb:   
   [I wrote]   
      
   >> Otherwise, tell me what reasonable result you get if you add a   
   >> second to a meter.   
   >   
   > More reasonable is to compute time^2-length^2 (the   
   > metric in our universe). Having the same units in   
   > that case saves you applying a conversion constant.   
      
   So, if you do this...   
      
   > For ploughing furs with a span of oxen, on the other   
   > hand, the furlong is of course useful (and was   
   > invented for it!) but only if you do not use it for   
   > the height coordinate (the oxen would agree with you   
   > that there is a difference). It all depends..   
      
   how would you calculate a Reynolds number (which may be on par   
   with ploughing furs to a physicist; as an engineer, I would't know)   
   using this method when length (sort of) equals time?   
      
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