XPost: comp.sys.mac.advocacy, misc.phone.mobile.iphone   
   From: racer@nunya.biz   
      
   On 2024-11-14 12:20, -hh wrote:   
   > On 11/13/24 4:15 PM, Andrews wrote:   
   >> -hh wrote on Wed, 13 Nov 2024 08:10:15 -0500 :   
   >>   
   >>> And why the sudden change to centripetal forces, when his claims   
   >>> have used catenary?   
   >>   
   >> A catenary can be in any direction, horizontal or vertical, "hh".   
   >   
   > Pedantically, sure ...   
   >   
   >> It's not the *direction* that defines the catenary but the uniformity of   
   >> force over length - which - you'd have known if you had ever taken   
   >> physics.   
   >   
   > ...but pragmatically, the reason why catenary doesn't apply to laeral   
   > non-gravitational based forces is because it is difficult for them to be   
   > sufficiently homogeneous: this theoretical doesn'tpragmatically occur in   
   > reality.   
   >   
   > Case in point, if this factor really was as significant as you're trying   
   > to imply that it is, then the real world ramifications are that during   
   > races, there would *never* able to be any passing in corners.   
      
   And he's simply wrong.   
      
   The forces in rope/chain/etc. hanging between points (i.e. in a catenary   
   curve) is most definitely NOT uniform.   
      
   The the ends of rope/chain/etc. need to support the weight of all the   
   material that hangs below, whereas the middle of the hanging whatever   
   doesn't.   
      
   (If he hadn't hidden himself away from me, I could easily write him a   
   thought experiment by steps, where I could absolutely prove that fact so   
   completely that he'd have to agree or shut his eyes to truth.   
      
      
   Little Arlen is probably remembering what he was taught in high school   
   physics where they say that the tension in an idealized rope   
   (/chain/etc.) is the same everywhere *   
      
   * and where there's probably a footnote that says "ignoring the weight   
   of rope itself".   
      
   Guys like him hear/read the first explanation of such phenomena they're   
   give and never are able to move beyond it.   
      
   :-)   
      
   --- SoupGate-DOS v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)