Er, actually, of course, “things go round the Sun” doesn’t correctly explain day and night. The correct theory is that the Earth turns on its axis, and goes round the sun but much more slowly. That’s why the unified theory of “sun going round the earth” is much simpler and more elegant to start with.
Er, actually, of course, “things go round the Sun” doesn’t correctly explain day and night. The correct theory is that the Earth turns on its axis, and goes round the sun but much more slowly. That’s why the unified theory of “sun going round the earth” is much simpler and more elegant to start with.