Search found 285 matches

by quadibloc
Thu Jun 13, 2024 2:03 pm
Forum: Map projections
Topic: The Monarch Flour Mystery: Almost Solved
Replies: 4
Views: 148

Re: The Monarch Flour Mystery: Almost Solved

I am red-faced now! Because all the atlas maps in the Monarch World Atlas, except for one of Canada on a conic projection, were on the Mercator projection, I had simply assumed, all the way from childhood, that the world map was also on the Mercator projection. But just now, as I was taking a closer...
by quadibloc
Thu Jun 13, 2024 9:55 am
Forum: Map projections
Topic: The Monarch Flour Mystery: Almost Solved
Replies: 4
Views: 148

Re: The Monarch Flour Mystery: Almost Solved

How are the domes over Eurasia arranged? You can tell from the curvature of the meridians that the map won't work if you simpe glue the left edge to the right edge like you can for the cylindrical portion. Yes, you're right. On the left of the map, the dome has 100 degrees East longitude as its sta...
by quadibloc
Thu Jun 13, 2024 5:32 am
Forum: Map projections
Topic: The Monarch Flour Mystery: Almost Solved
Replies: 4
Views: 148

The Monarch Flour Mystery: Almost Solved

The Van der Grinten III projection is the one where the parallels are horizontal lines, at the positions the parallels of the original Van der Grinten projection intersect the central meridian. I have noted on my web page that the Van der Grinten projection, along with the Van der Grinten IV project...
by quadibloc
Wed Jun 12, 2024 7:31 am
Forum: Map projections
Topic: The Diomedian Antimeridian
Replies: 20
Views: 341

Re: The Diomedian Antimeridian

If you can replace the Chinese government with a more benevolent one that's still ethnically Chinese, then you can do that with Russia, too. Unless you believe that Russians are all genetically-inferior subhumans who need to be rounded into concentration camps and gassed. Also, the United States ar...
by quadibloc
Wed Jun 12, 2024 1:20 am
Forum: Map projections
Topic: The Diomedian Antimeridian
Replies: 20
Views: 341

Re: The Diomedian Antimeridian

If I were dictator of the world, I'd go for a global phase-out of fossil fuels to stop Siberia's land and resources making Russia a great power. This might have other benefits too. Taking Siberia away from Russia would just set the stage for a Russian war of reconquest. Oh, indeed, fossil fuels mus...
by quadibloc
Tue Jun 11, 2024 8:27 pm
Forum: Map projections
Topic: The Diomedian Antimeridian
Replies: 20
Views: 341

Re: The Diomedian Antimeridian

Would you also give Korea Manchuria? It makes little sense to me to give them any part of Siberia without also giving them Manchuria, since that leads to a disconnected territory. If I wanted to give Sakhalin to someone that isn't Russia, Japan would make more sense. Well, Sakhalin was part of Japa...
by quadibloc
Tue Jun 11, 2024 3:40 pm
Forum: Map projections
Topic: Chalker Continental Composites
Replies: 106
Views: 2013

Re: Chalker Continental Composites

Incidentally, Copp Clark had both a map of Canada on the Simple Conic, and a map of the world on the Mercator Projection handy because they printed maps of these two types which adorned the walls of classrooms across Canada. Now, we've all heard of the deleterious effects of constant exposure to map...
by quadibloc
Tue Jun 11, 2024 2:11 pm
Forum: Map projections
Topic: Chalker Continental Composites
Replies: 106
Views: 2013

Re: Chalker Continental Composites

I think I actually saw that map with the birds in my recent web searches! (That is, not your drawing, but your inspiration.) Anyways, funny you mention the Baker dinomic. I ran across that recently, and it reminded me of the world map in the infamous Monarch Flour Atlas. This atlas was available in ...
by quadibloc
Tue Jun 11, 2024 2:01 pm
Forum: Mapmaking
Topic: Maps Based on Heezen-Tharp
Replies: 2
Views: 95

Re: Maps Based on Heezen-Tharp

Yes, I remember that the last time I was dealing with this question, I found I needed a working Linux machine handy to run the program that would take an image file where grayscale indicated elevation, and convert it to a shaded relief; that was one other thing I considered trying. It seemed logical...
by quadibloc
Tue Jun 11, 2024 8:36 am
Forum: Mapmaking
Topic: Maps Based on Heezen-Tharp
Replies: 2
Views: 95

Maps Based on Heezen-Tharp

While there are public domain relief map datums including bathymetry available, for some reason, the ones I have found have tended not to be as... dramatic as the famous ocean floor map that Marie Tharp was instrumental in creating. I looked around to see if I could find other maps based on that map...