XPost: comp.os.linux.misc   
   From: tnp@invalid.invalid   
      
   On 10/12/2025 01:50, c186282 wrote:   
   > On 12/9/25 06:53, Daniel70 wrote:   
   >> On 9/12/2025 9:09 pm, The Natural Philosopher wrote:   
   >>> On 09/12/2025 08:35, c186282 wrote:   
   >>>> On 12/8/25 17:41, rbowman wrote:   
   >>>>> On Mon, 8 Dec 2025 14:59:12 +0100, Carlos E.R. wrote:   
   >>>>>   
   >>>>>> No, this is intentional calibration of the car speedometer to 5   
   >>>>>> kilometres low. The reason is that if you see a road limit of 100Km/h   
   >>>>>> and you do drive at 100Km/h sharp, there is no possibility of you   
   >>>>>> driving just a bit above the limit and be fined. You could then   
   >>>>>> sue the   
   >>>>>> car maker for having bad instrumentation that caused you to be fined.   
   >>>>>   
   >>>>> That's the reason I've heard for Japanese bike speedometers being   
   >>>>> off. The   
   >>>>> speedometer in the Toyota is accurate when I'm running the 15"   
   >>>>> tires it's   
   >>>>> calibrated for.   
   >>>>   
   >>>>    Yep, tire diameter IS critical.   
   >>>>   
   >>> There is no 'tire diameter'   
   >>>   
   >>> Only circumference.   
   >>   
   >> .... and, as circumference is dependant on diameter/radius ......   
   >   
   >    Exactly.   
   >   
   >    Pi*D = circumference   
   >   
   >    Elastic properties of tires can make a   
   >    small headache, but overall ...   
   >   
   Nope. Circumference is not dependent on diameter   
   Diameter is dependent on circumference.  but only if the object is   
   perfectly round.   
      
   Imagine a car with bricks for wheels. It would run. But the brick has a   
   circumference. But no calculable diameter.   
      
   Ant convex object has a circumference about a given axis. Hell even my   
   waist. Only truly   
   spherical or cylindrical objects have a diameter however....   
      
      
      
   --   
   There is something fascinating about science. One gets such wholesale   
   returns of conjecture out of such a trifling investment of fact.   
      
   Mark Twain   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)