fly_freely_fully

  In childhood, we learn "opposite words", and one of such pairs was day and night. At a point of space and time on earth we either experience day or night. They never are simultaneous. So it seems that day and night are different events. We are told winters have longer nights and summers have longer days. Yes, it is correct, what is wrong with it - Nothing. Now If we see the earth from a certain distance, we can see different lengths of day and night simultaneously for infinite points of location on earth. Day and night happen together, they are not two events but the result of a small single phenomenon of sun rays falling on the earth, covering different areas day and night. The point of observation shifts and the interpretation differs. What is correct? What we learn in childhood that day and night happen at different times or what we have seen just now that day and night are simultaneous.  If we see things differently our "correct knowledge" can even become ...