XPost: alt.usage.english   
   From: phil@anonymous.invalid   
      
   On 20/09/2024 11:10, Bertel Lund Hansen wrote:   
   > Helmut Richter wrote:   
   >   
   >> And easier to remember than 1.609344. But when will you need such precision?   
   >> For instance, when you drive on German roads outside villages, you must   
   >> reduce your speed to 31.0685 mph whereas the rough rule 1 mi = 1.6 km would   
   >> have allowed you 31.2500 mph.   
   >   
   > I haven't neede it, but just for fun I have calculated the Danish speed   
   > limits in miles. If you want round firgures, it's:   
   >   
   >    	  50 km = 30 mi   
   >    	  80 km = 50 mi   
   >    	110 km = 70 mi (2 km too much)   
   >    	130 km = 80 mi   
   >   
      
   I'm not sure how common this is, but the speedometer in my car has   
   scales for both mph and km/h, so in principle I don't need to convert.   
   In practice, though, I have the above table in my head, from the old   
   days. It's easily remembered because the right-hand column corresponds   
   to the usual preferred values for UK speed limits.   
      
   --   
   Phil B   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)