good to there are many explanations I will explain you an easy imagine that you are from Argentina and you are going to travel to Japan or to a farther one and take a bull the abion takes off coje sierta height and does not say if it was round the abion would have to decender little by little each time more so to avoid getting lost from the planet worse not what they do is take height then go right and bend and ready somehow they arrived I think it is not understood much
Then how do you explain the day and night in the earth