From the perspective of a 4D observer would 3D infinity appear to exist? Why/why not?
Jul 2, 2016 #1 thefredman 13 0 From the perspective of a 4D observer would 3D infinity appear to exist? Why/why not?
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Jul 2, 2016 #2 PeterDonis Mentor Insights Author 2020 Award 32,969 11,445 thefredman said: From the perspective of a 4D observer would 3D infinity appear to exist? What does this mean?
thefredman said: From the perspective of a 4D observer would 3D infinity appear to exist? What does this mean?
Jul 3, 2016 #3 mathman Science Advisor 7,904 461 Reduce to 3d observer looking at 2d infinity. You will be able to answer your own question.