Hello, everyone, and welcome to day to day in this video.
I would like to introduce you to the few times that are related to the shape of the Earth and understand
what this means.
The eye is not perfect there.
So the eye is not completely spherical with the circumference of forty thousand seventy five kilometers.
That would actually make another thing.
Is it is the argument perfectly spherical, but it's not then is, of course, a couple graphic inventions,
which includes multi valleys, kids, etc..
When we are talking about in comparison to the rest of the diameters of the event, the less mundane
to not really the whole lot of radiation.
So actually, if we are going on, we are talking about Trayvon Martin and the presentations, we actually
often have to exaggerate the double cross examination of different areas or you get those up.
So, yes, there is a double graphic invitation, but when we are talking about the empire, it's not
very much.
There are values are not much lower than the surface of the Earth.
For example, the peak of Mount Everest is only eight thousand eight hundred forty eight meters above
the sea level, compared to the arch diameter of approximately 12 million seven hundred fifty six thousand
two hundred meters.
So as far as it goes, when we are talking about the shape and the size of the entire hour, we do not
have to worry about that much.
What are the things that we have to worry about is the fact that the earth is squashed.
The order is actually a little bit shorter from waterborne detection than it is if you are talking about
meters.
As you can see in the first diagram, the earth is squashed.
This is enough to make that thinking.
Then the ongoing geographical information system much more difficult than if we were working with upmarket
food.
Even though our planet is sick, it is not perfect sphere because before then the ultra did not fall
and we saw bones like flat the observation, wobbly motion and the other forces are making the planet
GTP shape very slowly.
But extend Loung.
This squishiness of the earth gives us Watchguard as Sammy Manjit and me my ex's is the ripple effect
is very good.
Then they would just stop about the diameter and the debris and that would be constant in all directions.
But because that does not work, that mistaken may have some major axis that goes from Ecliptic on the
other side of the equator.
And the may mean that axis, which is shorter, which goes from not falling down to this hour or so,
but we got a shape that is a sphere that we built and squashed a little bit.
But if we talk about sphere and squashed it, it forms ellipsoid.
So that's the terminology we use.
So say we are trying to construct the model of the many Denge when we are talking about the precious
measurement, which is not based on sphere, but it is based on little bit squashed spear like ellipsoid.
Sometimes it is also called a satellite because it is so close to say it's almost a sphere.
So sometimes we can hear term Sparerib, Esman.
But what does that I mean, it just means you have taken a sphere and squashed it a little bit and we
have a little bit better representation about the shape of the earth.
The speed of light is three dimensional shape created from two dimensional ellipse.
The Ellipse is an oval with immagine axis.
That is the longer axis and in my mind, axis, that is the shorter axis.
As you can see here in the diagram, we have the shorter axis that basically minorities' and the longer
axis that is the axis.
For example, if the Ellipse, the shape of the rotated figure is the strike that is another, then
it is also true that it is not only squashed, but it's also lumpy.
These are the technical terms, the artist GWI.
And, Nancy, aside from the topography, the they have lately big lunch lady Whitlams across the surface
of the earth.
So here you can see the lumpiness of the earth.
Sometimes it's very important for those lamps across the surface of the earth.
Then we are doing that.
We are generating something called joy.
So joy is the count of the lumpiness of the Earth as well as the squashed ness of the Earth.
Now, please let us understand different ways of models and the shape of the Earth.
This is a representation of the Earth and one level of generalization.
If they want to get a little bit bigger than that, they watch this very little bit and we get it into
an ellipsoid.
And if you want to make it even better representation of us, then we go into account.
It's lumpiness and squashed nuts.
And so we produce a joint that's.
I hope you like the video stadion.