This is the final video in the series of debunking
FlatEarth-101 Flat-Earth flyer. To be honest,
this is the third video, as the remaining
seven points were thoroughly debunked in my
“Nathan Thompson’s flyer” video.
Honestly, out of all their points, this one
is the laziest.
“Jet Streams on Globe Earth vs. Flat Earth.
Which one makes more sense?”
Followed by two images; really? Lazy much?
In all seriousness, which one makes more sense?
Well, to me, the globe one; but do keep in
mind that I know a little bit about what Jet
Streams are, how they are formed, and why
they behave that way.
What bugs me is when at times Flat-Earthers
would use a mercator projection, and at times
use a 3D projection: which ever suits their
narrative.
Can we establish couple of ground rules first?
We are not disputing the existence of Jet
stream, are we? Hopefully not.
Can we also agree that Earth has four primary
jet streams: two polar jet streams, near the
north and south poles, and two subtropical
jet streams closer to the equator? Furthermore,
can we agree that they blow from west to east,
and the flow shifts in north and south?
So far so good; now before I try to explain
what Jet Streams are, and why they behave
the way they do: would a flat-earther please
care to explain how it works in their flat-model.
In a flat-earth, may it be geocentric or not;
what causes the stream? So when I am seeing
this image, what’s the force that causing
that circular rings. I will wait.
>
Thanks Mark; While flat-earthers are trying
to figure that out: I will run through Jet
Stream just in case you want to remind yourself.
So what are Jet Stream? Well, they are fast
flowing, narrow, meandering air currents in
the atmospheres of some planets like Earth.
On Earth, the main jet streams are located
near the altitude of the tropopause; that
is the boundary in the Earth's atmosphere
between the troposphere and the stratosphere;
and troposphere being the lowest layer of
Earth's atmosphere, and is also where nearly
all weather conditions take place. It contains
75% of the atmosphere's mass and 99% of the
total mass of water vapour and aerosols.
There are four main jet streams; two in each
hemisphere. These are thousands of miles long
despite being only a few miles wide.
Next question: why? Well, in this series,
I like to keep things simple. So this is a
simple explanation, and you will find much
more detailed and thorough explanation on
the net.
Some place in the earth is cooler than other
places. Like where I live: UK, is bloody cold.
Compare that to somewhere like Spain, where
it is lovely and sunny.
Hey, wait a minute… they are not so far
away from me… so what gives?
Before we get into what gives: let’s talk
about what happens. Imagine the warm air raising
from Spain; compared to the cooler air raising
from UK. To start with, in cold air, the molecules
are more closely packed.. ie. Denser than
warm air. Thus colder air has a higher air-pressure.
So you have two column of airs; one hotter
than other, with lower air-pressure.
Here is where I will admit to my ignorance:
I don’t know enough about weather science
to know exactly what happens.
From my basic understanding of science; according
to entropy in thermodynamics, heat will try
to move to cold. At the same time, different
air pressure will try to reach equilibrium.
Don’t ask me: I’m just a guy on YouTube.
As in essence, they are really caused by the
same effect, maybe in weather science they
are considered same… I do not know.
Anyway, this pressure and heat difference
is what causes a pressure gradient force.
In theory, the warmer air in northern hemisphere
would flow from south-to-north.
This is what causes the Jet stream; and in
both hemisphere, this stream flows parallel
to this temperature gradient.
Next: imagine the earth; it makes sense that
over land, air would be warmer thanks to us
humans. So even on the same latitude or on
longitude: air would be of different temperature
even ignoring the sun just because of us.
Oh, yes.. I just mentioned the sun, right?
Well, as the whole stream is based on the
different temperature between air: during
winter, the polar winter is colder and we
are using more heat; and thus the temperature
difference is higher compared to summer time.
So, we have continent as a variable; then
we have seasons; On top of that… let’s
stick earth’s spin, shall we?
The earth is spinning, and that is causing
the streams to blow from west to east.
In theory, this jet should encircle the earth
in a continuos line. But due to all the land
masses, it is more broken up.
As the gradient is more prominent near the
poles, polar jet is stronger. During winter,
it gets even stronger.
Bring in the earth’s axis tilt and orbit;
resulting in the jet tending to be further
south in winter and further north in summer
in northern hemisphere.
On top, Coriolis force kicks in; causing the
air to move to the right of the direction
of motion in northern hemisphere; and to the
left in southern hemisphere.
All these mess creates a mid-altitude low-pressure
system on the northern side of the jet stream,
where the streams are more settled nearer
to south: I am talking about northern hemisphere.
That leads to our beautiful precious British
weather where it rains during winter: during
summer, at times we get the low pressure systems
towards us that results in – well, you guessed
it: more rain. Please someone remind me why
I live here… oh yeah.. NHS and education
system.
Oh, I did miss one other variable. Again entropy;
the heat generated from the continent; well
when the warm air moves further north than
normal, or cold polar air moves further south
– well technically, it’s the warm air
that shrunk… either way, this causes the
jet stream to in a sense ‘buckle’; driving
depressions towards different regions.
This is as far as I can reasonably explain
with my knowledge. Give me a break – I am
not a flat earther.
Check Dunning-Kruger effect to know more.
In our globe model, we can at-least explain
Jet stream. But it does get rather difficult
without a spin and an orbit. Just saying.
Well, that’s all for this video. Thank you
so much for watching. If you have enjoyed
this content: well, a like and a comment won’t
go amiss.
My next video will be a short departure from
Flat-earth; if you would subscribe, you will
get to find out about it or any future contents
like this: it would also definitely help my
small channel grow and would be thoroughly
appreciated.
Have a safe day; signing off.
