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Wednesday, October 21, 2026

Map of the World

Equal Earth Projection

The UN has passed a resolution encouraging people to use an equal area projection instead of the Mercator projection for maps of the world.

Mercator Projection

Supposedly the Mercator projection is better for navigation, something about you can draw a route from one place to another as a straight line. Of course anyone plotting a ship's course is going to use a map that only shows the relevant portion of the world. Area doesn't even enter the question.

Eckert IV projection

The Eckert projection is another equal area projection. If you can tell the difference between Eckert and Equal Earth you are better man than me.

Mercator Projection Versus True Size

This true size is not a coherent projection.

Mercator Projection Versus Eckert IV

All these maps reminds me of a scene from Strategist Kanbei where some Jesuit priests show Oda Nobunaga a map of the world which kind of blew his mind. It took the priests some absurd length of time to get from Portugal to Japan, like two years.

Fra Mauro Map of the World

The Fra Mauro map is a map of the world made around 1450 by the Italian (Venetian) cartographer Fra Mauro. Note that 1450 is before Columbus sailed to the New World.

My Low Distortion World Map

You'd think that after all this time I could have produced a better version of my map, but I've been busy.

Spilhaus Projection

This is the one that got me started on this post. Text from above image:

MANY SEAS, ONLY ONE OCEAN

Invented in 1942 by oceanographer Athelstan Spilhaus, the cartographic projection of the same name allows us to see the world through the eyes of a marine organism. The 70.8% of water on Earth forms, clearly shown here, an immense continuum, a large continuous body of water, varying in temperature and salinity according to currents and the ebb and flow of the seasons.

P. S. Ocean Currents

Ocean Currents Spilhaus Projection



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