From: ogsn@ovre4sb.vp   
      
   Tom Roberts wrote:   
      
      
   >> I don't know what you're referring to there.  Please elaborate.   
   >   
   > On 6/26/2019 I posted:   
   > Arrange two turntables to have their centers at rest in some inertial   
   > frame, and arrange them so their rims are tangent. On each rim place a   
   > clock, and arrange their rotation rates to be a rational number, such   
   > that the clocks periodically meet. By carefully choosing the rotation   
   > rates and the turntables' radii, you can arrange for the clock with the   
   > SMALLER acceleration to have a larger speed relative to the inertial   
   > frame, and thus accumulate less proper time between meetings.   
   > That is contrary to the notion that "acceleration is all that matters".   
      
   Not even wrong, by many lengths. That's a fictive acceleration/force. The   
   trick goes because different speeds, not paths, nor acceleration. Say a   
   4:1. However, the smaller and the larger disk are traveling same   
   distance. Which indicates that it is not the speed either, but the path   
   alone. Very funny indeed. Excellent addendum.   
      
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