From: niklas.holsti@tidorum.invalid   
      
   On 2021-04-24 21:54, David Spain wrote:   
   > Niklas Holsti  writes:   
   >   
   >> On 2021-04-24 9:23, JF Mezei wrote:   
   >>> In the news this week was that Perseverance on mars generated some   
   >>> "breathable" Oxygen (I guess there are brands of O2 that are not   
   >>> breathable :-)   
   >>   
   >>   
   >> Ozone is a form of oxygen that is not recommended for breathing.   
   >   
   > True but technically ozone is O3 not O2.   
      
      
   JZ Mezei was trying to joke about the inexistence of "oxygen" that is   
   not "breathable". It was Mezei who misunderstood "oxygen" as meaning O2.   
      
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