Why are the air currents moving at hundreds of kms/hr?
Trolling or for real?
A flat earther wouldn't accept the answer that the earth is rotating at 1000mph, so the jetstream being 100-200kmph and more doesn't make sense.
Flight times at 35000 feet are always adjusted due to the jetstream, sometimes taking up to 20% off the flight time with a good tail wind, or adding just as much (or using more fuel to keep on schedule) when fighting a headwind.
The hot and cold surfaces also create some wind conditions, like the huge winds that just hit the west coast last week.
If the jet stream is caused at least partially by the rotation of the earth, wouldn't the oceans move the same way as clouds, in currents; and also not be affected by that tiny bit of gravity from the moon that we can't reliably measure?
Interesting question.
Do you ever drive with water or coffee in your car?
How does the little tiny cup of orange juice sit so flat on the little tray table of a plane?
The answer is inertia and friction.
The ocean is liquid water which has a very strong bond to itself, and has gotten used to rotating at 1000mph
The air is way less dense, and isn't very good at sticking together (it can be felt as air resistance, but doesn't do a really good job of holding together) allowing the earth to rotate under it. Even though the air wants to stay mostly where it is, it still tags along.
I'm sure there are weather people that can explain the jet stream very scientifically. I usually just reference people to cars and planes as they can relate to those.
Water for sure can be very stable - think rowing a canoe. If you drag the paddle slow enough through the water, there is very little movement of the water but the canoe will move forward/backward. The water holds together and allows the paddle to press against it. Trying to move the paddle fast will create splashes.
Even though 1000mph sounds fast, the earth is very very huge, and 1000mph rotation isn't much, relatively speaking. Do you feel yourself moving at 1000mph when you jump up? no, because of inertia and a relative frame of reference to everything around you.
Look up the 'throwing a ball up in a truck" and then the "shooting a ball out of a cannon" video by mythbusters.
The shooting the ball out one is awesome because they drive the truck at 50mph or whatever, then shoot the ball out the back of the truck at 50mph and the ball just drops straight down.
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