From: damarkley@gmail.com   
      
   On Wednesday, February 21, 2024 at 3:18:44 AM UTC-5, Doctor Who wrote:   
   > On Tue, 20 Feb 2024 15:48:04 -0500, Alain Fournier    
   >  wrote:    
   >    
   > >On 2024-02-20 1:51 p.m., The Running Man wrote:    
   > >>> For some reason, the PNN folks who were quite active on this group do    
   > >>> not seem to have posted anything in a long while. Did they run out of    
   > >>> active people, or money? Or did they finally figure out it doesn't work    
   > >>> and quietly closed shop?    
   > >>> --    
   > >>> /* * * Otto J. Makela  * * * * * * * * * */    
   > >>> /* Phone: +358 40 765 5772, ICBM: N 60 10' E 24 55' */    
   > >>> /* Mail: Mechelininkatu 26 B 27, FI-00100 Helsinki */    
   > >>> /* * * Computers Rule 01001111 01001011 * * * * * * */    
   > >>    
   > >> What does PNN stand for?    
   > >>    
   > >    
   > >It stands for Propulsione Non Newtoniana (Italian, meaning Non-Newtonian    
   > >Propulsion). A group of Italian people claiming that they have a    
   > >propulsion system using no reaction mass. Something like a microwaves    
   > >bouncing around in a closed cavity that they claim, without explaining    
   > >the physics behind it, that it produces acceleration. They have video    
   > >showing that it gives if I recall correctly some 200 mN of force. We    
   > >tried to explain to them that because their microwaves heat one side of    
   > >their apparatus more than the other side, the air is heated more on one    
   > >side than the other. This differential in air temperature can explain    
   > >the force that they measure, therefore, outside an atmosphere it    
   > >wouldn't work. But they don't want any of that, they are sure that their    
   > >"invention" will revolutionize rocketry.    
   > >    
   > >    
   > >Alain Fournier   
   > Which was of course the wrong explanation.    
   >    
   > We have tests on a scale with up and down thrust.   
      
   Tests in a vacuum?   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)