Visible light does not exist. Visible objects exist. Illuminated and illuminating objects emit electromagnetic radiation at a frequency detectable by the human eye. We cannot see EMR as it propagates through space. Only as it illuminates and/or radiates from an object.
Which means that we see objects as they are, in real time. The stars in the sky also exist today, as we see them. We see illuminated objects. It may be that a star say, a light year away that comes into existence may not be visible to us until its EMR reaches us. But once it reaches us, we detect its frequency (we see the star) in real time. This of course flies in the face of the accepted paradigm so don't use any thing I write as an answer to a question on an exam. Go for the BS until you graduate and even then take care with what you put forward. Science is steeped in ignorance and can only respond to new ideas with sluggish caution. I am saying that our eyes detect frequency of emission. There is no such thing as little balls of visible light, so called photons, flying around carrying old images, just so our eyes can detect (be fooled by) them. It’s true that the EMR that arrives was emitted say light years ago, the thing is we do not see the EMR picked up by mechanical detectors. We see through space. We see the distant light source. Sound requires a medium to propagate through to reach our ears. Illuminated objects are best seen through a vacuum. We see "over there". EMR propagation is an efficient dispersion of energy and is probably pushed (displaced) rather than in abeyance of Newton's first law as re momentum. And again, if it is pushed, we see the pusher in real time. Roemer can be accounted for with this view. johnreed -- You received this message because you are subscribed to the Google Groups "Epistemology" group. To post to this group, send email to epistemology@googlegroups.com. To unsubscribe from this group, send email to epistemology+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/epistemology?hl=en.
