When I look up out the window I see the moon ver the computer in the south. Just a few days ago, during the Supermoon it was in the west over the back garden. It is always somewhere different. I never know where to look. What makes it do this?
"To keep the Moon in the same place at the same time every night, (i.e. to be able to say “It’s 2am - so the moon must be over the church”), the Moon would have to have an orbital period that was a fixed fraction of a day (i.e. a whole day, half a day etc). It doesn't."
The moon orbits around the earth every 27.322 days. And it orbits west to east and the earth rotes west to east, so all things in the sky move east to west. I hadn't thought about our rotation.
Why don't I experience the earth move in its rotation when I jump up? Here's a 'smart version' of my question:
"If I'm standing at the equator, jump, and land 1 second later, the Earth does NOT move 1000mph (or .28 miles per second) relative to me, since my velocity while jumping is also 1000mph.
However, the Earth is moving in a circle (albeit a very large one), while I, while jumping, am moving in a straight line.
How much do I move relative to my starting point because of this? I realize it will be a miniscule amount, and not noticeable in practise, but I'd be interested in the theoretical answer."
I don't need to look further - the question itself is sufficient to answer my own sufficiently.
Here are some jumping jokes:
My neighbor tried to wager money on whether I could jump the row of bushes between our properties... But I don't like to hedge my bets
What do you call it when a thousand rabbits jump backwards? A receding hare line
What does a janitor say when he jumps out of the closet? Supplies!
We see a lovely bed of peonies blooming at Winterthur last May. Winterthur is near Longwood, both south of Philadelphia. Winterthur has America's greatest naturalistic garden and foremost Museum of American decorative and fine art objects.
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