|Bäume im Sauerland · Foto Klein-Hitpaß|
Then you switch subject. It’s night, a clear night, perhaps in the countryside. No moon, no city-type light halo. Stars twinkle. With a bit of luck and a while for adaptation you find the Milky Way.
Here the question: Why can’t you look through the trees, but you can look through the stars – into the universe? After a couple of hundred meters all you see is a wall of trees. But the endless universe doesn’t appear all white of stars? Why not a sheet of paper, with some lighter spots, the stars nearby?
Why the sky is dark?
Is the reason »curved spacetime«? And your straight sight does not turn the curve but looks out into empty space? Should we switch to ADSn? I must be joking.
This post is dedicated to Stu.