It's because the earth tilts on its axis as it flies round the sun and, um, er, something like that...
Sherlock Holmes pretended not to know even that the earth went round the sun. He didn't want to clutter up his peerless brain with useless information.
It amazes me the things scientists say they know. Like the age of the universe and the size of it and all that stuff about black holes.
I take these things on trust, just as I used to take things on trust from bishops and theologians.
I feel uneasy sometimes about being so scornful of creationists. Could I convincingly expound Darwin's Theory of Evolution? Could I fuck!
If Newton said he was like a man picking up shells on the edge of a vast ocean, what does that make me?
I know this, that and the other. Or think I do. Most of it at second-hand.
The leaves turn brown. The air smells cold...