XPost: sci.physics   
   From: jl@glen--canyon.com   
      
   On Tue, 10 Feb 2026 22:42:16 -0000 (UTC), Phil Hobbs   
    wrote:   
      
   >Stefan Ram  wrote:   
   >> Phil Hobbs  wrote or quoted:   
   >>> Doesn’t work though—the energy has mass too.   
   >>   
   >>   Energy does not always have mass. Counterexample:   
   >>   A photon - it has energy, but no mass.   
   >>   
   >> Newsgroups: sci.electronics.design,sci.physics   
   >> Followup-To: sci.physics   
   >> Subject changed   
   >>   
   >>   
   >>   
   >   
   >No *rest* mass. But a photon is never at rest.   
      
   Dang, I was going to say that.   
      
      
   John Larkin   
   Highland Tech Glen Canyon Design Center   
   Lunatic Fringe Electronics   
      
   --- SoupGate-Win32 v1.05   
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