From: PointedEars@web.de   
      
   x wrote:   
   ^   
   Who?   
      
   > On 12/13/25 12:05, JTEM wrote:   
   >  >   
   >  > Imagine a 4 dimensional being. How would their view   
   >  > of our world differ from your own? How might their   
   >  > interactions with our world appear to us? How would   
   >  > it manifest to us in our 3D existence?   
   >  >   
   >  > Now. Imagine a photon. It doesn't experience time.   
   >  > How would that differ from us? How might those   
   >  > differences manifest in our existence where we do   
   >  > experience time?   
   >   
   > 'Space' is often thought of as having 3 'dimensions'   
   > whereas 'time' is often thought of as having one.   
      
   Instead, there are 3 spatial dimensions and one temporal dimension that we   
   can be sure of as we can observe them.   
      
   > It is possible for many people to conceive of spatial dimensions   
   > in a photograph or painting being set in a specific time.   
      
   In a photograph or painting, the observed 3 spatial dimensions are projected   
   onto a 2-dimensional surface.   
      
   > I once remember reading in an astronomy magazine about 10 or   
   > 20 years ago where material streaming from maybe a pulsar   
   > or quasar of going faster than light upon one vector direction   
   > but not necessarily across the vector that the mass material   
   > was going.  In other words, since the mass stream was going at   
   > an angle it was going 'faster than light' in comparison with   
   > another reference frame.   
      
   Yes, these are only apparent speeds faster than light.   
      
   > Then there is something called Cherenkov radiation that deal   
   > with light not in a vacuum.   
      
   Cherenkov radiation is emitted by electrically charged particles when they   
   move faster than light relative to a medium, similar to the shockwave that   
   created, and called a "sonic boom", when an object is moving through air   
   faster than the speed of sound in air.  This is possible because the phase   
   speed of light in a medium is usually less than in vacuum (if the medium has   
   a index of refraction n greater than 1), and which is the correct   
   explanation for refraction in the first place:   
      
     v_ph = c/n.   
      
      
   pp.   
      
   > These specific 'ideas' in this circumstance are conveyed by   
   > a mechanism known of as 'writing', however images or sounds   
   > that are not in the form or writing might theoretically   
   > potentially have meaning also in some circumstances.  That   
   > meaning might vary between different people at times.   
      
   I have no idea what you are getting at.   
      
   --   
   PointedEars   
      
   Twitter: @PointedEars2   
   Please do not cc me. / Bitte keine Kopien per E-Mail.   
      
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