How do Map Projections Work?

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[General.Knowledge]

So which of these is your favorite? I really like the Cahill Butterfly

[Nikioko]

6:45: The transverse Marcator is similar to the Mercator, but instead of the equator, the cylinder touches the earth's surface on the 0° and 180° meridians. So the toilet paper core is horizontal, not vertical. Therefore the biggest distortion is at 90°W and 90°E meridians (the straight horizontal lines through the poles) whose intersections with the equator are stretched to infinity like the poles in the true Mercator projection (parallel lines intersect in infinity). The choice of the 0°/180° meridians is quite random, another great circle as the contact line between cylinder (e.g. the 60°W/120°E meridians) and ball leads to different results. In That case, the biggest distortion would be at 150°W and 30°E.

[cheydinal]

The Dymaxion-Fuller Map (triangles that are put next to each other) is often used to show the origin and spread of mankind from Africa, to other continents

[alexgaming]

I would say that my favorite depends on What I’m using them for, for example, if I want to do a size comparison, I would use the Gall-Peters projection, if i hypotheticlly were stuck in the ocean, I would’ve used the Mercator projection. If I became a teacher in the future, I would use either the Winel Tripel projection or Robinson’s projection, if I want it change my view of the world, I would probably use other interesting maps, although, this whole thing with projections is Why I prefer a globe

[holydutchlord]

Can you do something that has always bothered me the difference between Territories, Departments and Colonies?

[mohdadeeb]

Teacher : What Did you learn ?
Me : Gif not Jif .

[Nikioko]

1:28: The Mercator projection is important in navigation because it has correct angles. The great circles (except meridians and the equator) are distorted, however. So a plane flying from Europe to New York over the southern tip of Greenland seemingly flies a curve, but in reality it is a straight line.
The Mercator projection is a cylindrical projection as a cylinder is wrapped around the earth, touching it at the equator. The projection rays start from the center of the earth, therefore the poles are stretched to infinity. The Behrmann (not Berhmann) projection is also a cylindrical projection, but here projection rays are parallel to the earth's rotational axis, so distances near the poles are distorted to zero.

[jessehendrix]

I forgot the name of the projection, but there was one which represented the northern and southern hemispheres with two circles, with the poles in the center. The lines of latitude were equal distances apart.

It was printed on a double-sided disc, and you could fairly accurately find distance and direction by stretching a string between the two points.

It seemed like a good compromise between accuracy and intelligibility if you needed both and could only have one map.

Of course a globe is the best way to go, with the only downside being that you can't see the whole earth at once and it can't be shared as an image.

[Nikioko]

9:34: Those triangles are nets of tetrahedra. The left one has the north pole in the center of a face and the south pole on a corner, the right one the other way around.
10:34: Those eight triangles are the net of an octahedron. It is a projection of a spherical surface onto the faces of that octahedron.
11:16: And finally in this one, the surface of the earth is projected onto an icosahedron which is the closest to a sphere among the Platonic polyhedra.

[ervano]

Very interesting video.
My favourite projection is the conical Lambert projection with two intersecting parallels. It is the projection that the Belgian NGI, the National Geographic Institute, uses to create their topographic maps. I am Belgian and live in Belgium, so these maps are the most important to me. I understand this projection the best. It is extremely suitable for our small country and therefore shows almost no or only a few minimal distortions.
Of course, the various Mercator projections are also very interesting and important to me, and not least because it is one of our own, and not far from my neighbourhood. But also, because it is one of the best known and most used in the world, and we are of course very proud of that here.
But still, the Mercator projection has a little secret that I have unfortunately not yet been able to unveil. I am working on it.

[YnM.]

Watching for the second time!
Continue bro!

[Kettenhund]

Ten out of ten for this one! A complex idea rendered understandable!

[fikimi]

You Should have 7, 4 billion subs. Absolutely best content in YouTube!! Keep it up!

[jpfl]

Great video! Greetings from Brazil 🇧🇷.

[luigidude]

Geographer here: the orange isn't really a good representation of the Earth. Earth is a spheroid. Imagine trying to make a ball out of play-doh. It kinda looks lumpy when making it round

[daniels.iparraguirre]

When you say, in the Mercator projection, "it inflates the sizes" towards the poles, (away from the equator), you mean the scale increases with increasing distance from the equator. Right?

[Nikioko]

12:20: The Schjerning I is a conical projection which has the purpose to depict Russia as a whole with only very little distortion. Therefore it is very accurate around 60°N latitude and is very distorted on the southern hemisphere.

[GeographyWorld]

9:56 Island? Do you mean Iceland or Ireland?

[IceColdProfessional]

Who knew maps and mapping was so complex, yet so precise?

[JakeLikesTech]

7:33 the painter was distorting the dudes forehead the same way Mercator distorted his maps.
Also 12:21 that's the "wall of ice" flat Earthers are looking for that circles the world.