From: here@is.invalid   
      
   The tennis racket theorem or intermediate axis theorem is a result in   
   classical mechanics describing the movement of a rigid body with three   
   distinct principal moments of inertia. It is also dubbed the   
   Dzhanibekov effect, after Russian cosmonaut Vladimir Dzhanibekov who   
   noticed..   
      
   Vid   
      
   https://twitter.com/engineers_feed/status/1398298787412688899   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)