From: am@yellowjersey.org   
      
   On 5/1/2020 7:06 PM, thekmanrocks@gmail.com wrote:   
   > Arlen Holder:   
   >   
   > So 725,000 sq mm approximates 1,224 sq in. internal area of your example   
   tire.   
   >   
   > If a particular vehicle requires 32psi cold air pressure in that tire, that   
   equates to 32 * 1,224sq. in = 39,168 total   
   > pounds of air pressure against the interior wall of that tire! Wow!   
   >   
   > If we increase that 32psi figure by 10%, that's 35.2psi.   
   >   
   > 35.2 x 1,224 = 39,564 total pounds of pressure against the wall of that same   
   > tire.  An increase of only 1.01% in the total pressure against it.   
   >   
   > So much for my theory that each additional pound of air pressure   
   exponentiates the total pressure imposed on   
   > the inside of that tire.   
   >   
      
   That's not how physics works. Pneumatic pressure acts   
   equally on all surfaces. For 35psi, it's 35psi on each part   
   of the surface of your closed figure- 35psi on the tire,   
   35psi on the rim - but 35psi only.   
      
   --   
   Andrew Muzi   
        
     Open every day since 1 April, 1971   
      
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