(Roughly) Daily

Posts Tagged ‘mapping

“Maps are a way of organizing wonder”*…

… and of understanding where places and things actually are. As John Nelson elegantly demonstrates, we sometimes need that remedial help…

If learned early on, a foundationally incorrect view of the world can perpetuate, as students naturally build knowledge in light of a past, incorrect, understanding. Something as basic as our assumptions about the relative locations of Earth’s continents is an interesting, and actually sort of fun, example of how we can get things wrong right off the bat. Ultimately, everything is learned, but some curious geographic errors tend to persist more than others.

So what are some tantalizing locational mistakes that seemingly come pre-installed in American students’ minds that geography teachers wrestle to overcome?

So glad you asked! Here is a cherry-picked handful of examples that we’ll dive into…

  • The northiness of Africa
  • The northiness of Europe
  • The eastiness of South America…

Some common geographic mental misplacements, beautifully illustrated: “Misconceptions,” from @John_M_Nelson @Esri.

See also the companion piece, “Enclaves & Exclaves” and John’s personal blog, “Adventures In Mapping.”

Peter Steinhart

###

As we grasp geography, we might recall that it was on this date in 1830 that U. S. Secretary of the Navy John Branch established the Depot of Charts and Instruments, a humble undertaking with an annual budget of $330; its primary function was the restoration, repair, and rating of navigational instruments. But from that seed grew the United States Naval Observatory, a scientific and military facility that produces geopositioning, navigation, and timekeeping data for the United States Navy and the United States Department of Defense. It is one of the oldest scientific agencies in the U. S., and remains the country’s leading authority for astronomical and timing data for all purposes.

source

Written by (Roughly) Daily

December 6, 2022 at 1:00 am

“Maps codify the miracle of existence”*…

… and almost always, something more…

“Now when I was a little chap I had a passion for maps”, says the seafaring raconteur Charles Marlow in Joseph Conrad’s Heart of Darkness (1899). “At that time there were many blank spaces on the earth, and when I saw one that looked particularly inviting on a map (but they all look that) I would put my finger on it and say, ‘When I grow up I will go there.'” Of course, these “blank spaces” were anything but. The no-man’s-lands that colonial explorers like Marlow found most inviting (the Congo River basin, Tasmania, the Andaman Islands) were, in fact, richly populated, and faced devastating consequences in the name of imperial expansion.

In the same troublesome vein as Marlow, Edward Quin’s Historical Atlas painted cartographic knowledge as a candle coruscating against the void of ignorance, represented in his unique vision by a broiling mass of black cloud. Each map represents the bounds of geographical learning at a particular point in history, from a specific civilizational perspective, beginning with Eden, circa “B.C. 2348”. In the next map titled “B.C. 1491. The Exodus of the Israelites”, Armenia, Assyria, Arabia, Aram, and Egypt form an island of light, pushing back the black clouds of unknowing. As history progresses — through various Roman dynasties, the reign of Charlemagne, and the Crusades — the foul weather retreats further. In the map titled “A.D. 1498. The Discovery of America”, the transatlantic exploits of the so-called Age of Discovery force Quin to employ a shift in scale — the luminescence of his globe now extends to include Africa and most of Asia, but North America hides behind cumulus clouds, with its “unnamed” eastern shores peeking out from beneath a storm of oblivion. In the Atlas‘ last map, we find a world without darkness, not a trace of cloud. Instead, unexplored territories stretch out in the pale brown of vellum parchment, demarcating “barbarous and uncivilized countries”, as if the hinterlands of Africa and Canada are awaiting colonial inscription. 

Looking back from a contemporary vantage, the Historical Atlas remains memorable for what is not shown. Quin’s cartography inadvertently visualizes the ideology of empire: a geographic chauvinism that had little respect for the knowledge of those beyond imperial borders. And aside from depicting the reach of Kublai Khan, his focus remains narrowly European and Judeo-Christian. While Quin strives for accuracy, he admits to programmatic omission. “The colours we have used being generally meant to point out and distinguish one state or empire from another. . . were obviously inapplicable to deserts peopled by tribes having no settled form of government, or political existence, or known territorial limits”. Instead of representing these groups, Quin, like his clouds, has erased them from view.

Clouds of Unknowing: Edward Quin’s (1830) Historical Atlas. From the David Rumsey Map Collection (via the Internet Archive), where you can view it all. Via the invaluable Public Domain Review (@PublicDomainRev).

* Nicholas Crane, Mercator: The Man Who Mapped the Planet

###

As we find our place, we might recall that it was on this date in 1971 that an epic mapping expedition began: NASA launched the Mariner 9 space probe, the first space craft to orbit Mars (or any other planet). Mariner 9 was designed to continue the atmospheric studies begun by Mariner 6 and 7, and to map over 70% of the Martian surface from the lowest altitude (930 mi) and at the highest resolutions (from 1,100 to 110 yards per pixel) of any Mars mission up to that point. After a spate of dust storms on the planet for several months following its arrival, the orbiter managed to send back clear pictures of the surface. Mariner 9 successfully returned 7,329 images over the course of its mission, which concluded in October 1972.

source