Posts Tagged ‘map’
“It’s a matter of perspective”*…
A map’s most basic assumption is a question of orientation (or persective, if you will). For most of us, “up” on a map is north… but it needn’t be– and in Australia, it often isn’t…
Perhaps more impactfully, there’s another matter of perspective: the question of a map’s projection (of areas on a sphere onto a plane). A couple of years ago, (R)D featured The True Size (source of the image at the top), which noted that…
It is hard to represent our spherical world on flat piece of paper. Cartographers use something called a “projection” to morph the globe into 2D map. The most popular of these is the Mercator projection.
Every map projection introduces distortion, and each has its own set of problems. One of the most common criticisms of the Mercator map is that it exaggerates the size of countries nearer the poles (US, Russia, Europe), while downplaying the size of those near the equator (the African Continent). On the Mercator projection Greenland appears to be roughly the same size as Africa. In reality, Greenland is 0.8 million sq. miles and Africa is 11.6 million sq. miles, nearly 14 and a half times larger…
Maps are in the news again, and for exactly that reason. As the estimable Frank Jacobs reports in Big Think, The African Union is arguing that the Mercator projection distorts the continent, both in size and global attention…
On a world map in the Mercator projection, Russia appears larger than Africa. In fact, Africa (11.7 million sq mi, 30.4 million km2) is nearly twice as large as Russia (6.6 million sq mi, 17.1 million km2). Africa has finally had enough.
“(Mercator) is the world’s longest misinformation and disinformation campaign, and it just simply has to stop,” Moky Makura, executive director of advocacy group Africa No Filter, told Reuters. The group champions the introduction of the Equal Earth projection, which aims to give Africa its magnitudinal due.
The African Union (AU) — the association bringing together all of Africa’s 55 countries — has joined Correct the Map, a campaign that urges national governments and international organizations such as the UN or the World Bank to replace Mercator with Equal Earth [here]…
… “Maps are not neutral,” Fara Ndiaye, the co-founder of Speak Up Africa, told The Washington Post. “They were never meant to be. They shape how we learn, how we imagine power, how we see ourselves.”
But, as Jacobs notes, the switch could be tricky…
In 1569, Flemish mapmaker Geert De Cremer — known by his Latinized name as Gerardus Mercator — introduced a map projection that revolutionized navigation. Simply put: a straight line on a Mercator map is a straight line at sea.
That’s not as obvious as it might seem. If you flatten a three-dimensional object, such as the Earth, onto a two-dimensional surface, like a map, you’ll inevitably create some distortion.
Mercator’s radical solution was to reduce directional distortion to zero: His projection maintains accurate angles and directions. That so-called conformal map projection made life (a little bit) easier for the ships swarming out all over the world in the Age of Sail.
But that decision came with a trade-off: It grossly inflated the size of land masses closer to the poles…
… traditions are hard to break. Case in point: The AU itself is still using Mercator for some of the maps on its websites. But secondly, and most importantly, maps aren’t about fairness; they’re about function. Despite its advanced age, the Mercator projection has an in-built advantage over most others.
Mercator’s rectangular grid wasn’t just instrumental for 19th-century whaling vessels tracking their prey; it’s just as useful for 21st-century digital cartography. All those straight angles make Mercator the projection of choice for zoomable maps…
Eminently worth reading in full: “Africa wants its true size on the world map,” from @bigthink.com.
See also: “The True Size of Africa” (an inspiration for The True Size)
* popular idiom
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As we scrutinize scale, we might spare a thought for Joseph Nicollet; he died on this date in 1843. A geographer, cartographer, astronomer, and mathematician, he is best known for mapping the Upper Mississippi River basin during the 1830s.
Nicollet’s maps were among the most accurate of the time, correcting errors made by Zebulon Pike, and they provided the basis for all subsequent maps of the American interior. They were also among the first to depict elevation by hachuring and the only maps to use regional Native American placenames.
Nicollet is memorialized in the names of several places in the region he explored, including Nicollet Island, Nicollet Avenue in Minneapolis, Nicollet County, and the city of Nicollet, all located in Minnesota.
“I am told there are people who do not care for maps, and I find it hard to believe”*…
A marvelous account of the oldest surviving map in the world…
Taking a first glance at the Babylonian Map of the World, few of us could recognize it for what it is. But then again, few of us are anything like the British Museum Middle East department curator Irving Finkel, whose vast knowledge (and ability to share it compellingly) have made him a viewer favorite on the institution’s YouTube channel. In the Curator’s Corner video below, he offers an up-close view of the Babylonian Map of the World — or rather, the fragment of the clay tablet from the eighth or seventh century BC that he and other experts have determined contains a piece of the oldest map of the known world in existence.
“If you look carefully, you will see that the flat surface of the clay has a double circle,” Finkel says. Within the circle is cuneiform writing that describes the shape as the “bitter river” that surrounds the known world: ancient Mesopotamia, or modern-day Iraq.
Inside the circle lie representations of both the Euphrates River and the mighty city of Babylon; outside it lie a series of what scholars have determined were originally eight triangles. “Sometimes people say they are islands, sometimes people say they are districts, but in point of fact, they are almost certainly mountains,” which stand “far beyond the known world” and represent, to the ancient Babylonians, “places full of magic, and full of mystery.”
Coming up with a coherent explanation of the map itself hinged on the discovery, in the nineteen-nineties, of one of those triangles originally thought to have been lost. This owes to the enthusiasm of a non-professional, a student in Finkel’s cuneiform night classes named Edith Horsley. During one of her once-a-week volunteer shifts at the British Museum, she set aside a particularly intriguing clay fragment. As soon as Finkel saw it, he knew just the artifact to which it belonged. After the piece’s reattachment, much fell into place, not least that the map purported to show the distant location of the beached (or rather, mountained) ark built by “the Babylonian version of Noah” [Utnapishtim in the Epic of Gilgamesh, himself likely based on the earlier Mesopotamian flood navigator Ziusudra] — the search for which continues these nine or so millennia later…
“An Introduction to The Babylonian Map of the World–the Oldest Known Map of the World,” from @openculture.
Sort of apposite– and very amusing: “The Many Lives of Null Island.”
* Robert Louis Stevenson
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As we contemplate cartography, we might send exploratory birthday greetings to Samuel de Champlain; he was born (baptismal records suggest) on this date in 1567. An explorer, navigator, cartographer, draftsman, soldier, geographer, ethnologist, diplomat, and chronicler, he made between 21 and 29 trips across the Atlantic Ocean and founded Quebec City, the territory of New France, and a number of colonial settlements in what we now know as Canada– of which Champlain created the first accurate coastal map during his explorations.
“The map? I will first make it.”*…
For map enthusiasts of all ages– Very Expensive Maps. As its self-description explains…
You get what you pay for: Very Expensive Maps is a podcast by cartographer Evan Applegate in which he interviews better cartographers. Listen to the best living mapmakers describe how they create worlds in ink, pixels, graphite, threads, paint, ceramic, wood and metal.
A podcast about maps? Let Jason Kottke reassure you…
A podcast about a visual medium like maps is maybe a tiny bit like dancing about architecture, but Applegate makes it work. The archives [from which, the examples above] are a key part of the show… lots of links to the maps discussed during each episode…
Applegate’s hope that you will be inspired: “Remember: you can, and should, make your own maps.“
* Patrick White, Voss
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As we contemplate cartography, we might recall that it was on this date in 1682 that William Penn receives the area that is now the state of Delaware (from James, the Duke of York, who gotten it from the defeated previous owners, the Dutch), and added it to his colony of Pennsylvania. New maps were created.
“We’re all pilgrims on the same journey but some pilgrims have better road maps”*…
Tis the season for road trips. These days, we tend to navigate via Google Maps; but for centuries, travelers relied on road atlases. From the Bodleian Library‘s Map Room, a wonderful example from the 18th century…
As a general rule we do not fold our atlases in half. It would be bad for them, and probably quite difficult. This is a rare example of an atlas that was designed to be folded in half.
It’s an early road atlas to be carried while traveling. When the soft, rather tattered brown leather covers are opened, it reveals that a previous owner has made some notes of place names and distances in the inside of the cover.
The book itself could be folded or rolled, making it smaller and more portable. It is Thomas Kitchin’s Post-chaise companion, and dates from 1767. It has clearly grown accustomed to being folded in half, as can be seen from the weights required to hold it open for photography:
The very earliest road atlases date from the seventeenth century. Previously travellers relied on road books, lists of names that would enable them to ask the way from one town to the next. Arguably the first road atlas was produced by Matthew Simmons in the 1630s, with triangular distance tables (like those sometimes found in modern road atlases) and very tiny maps. The big innovation was John Ogilby’s Britannia in 1675, which used strip maps to show the major roads throughout Great Britain in unprecedented detail; this design continued to be copied for over a century, as can be seen here. Britannia was however a large volume, too bulky to transport easily.
Perhaps surprisingly, it was around fifty years after the publication of Britannia before smaller, more portable versions were produced, and then rival versions by three different publishers appeared around the same time in the 1720s; one of these, by Emanuel Bowen, was reissued in multiple editions into the 1760s. Thomas Kitchin, who produced this work, had been apprenticed to Bowen, and had married Bowen’s daughter before setting up as an independent mapmaker, embarking on a long, prolific and successful career, and being appointed Hydrographer to George III.
Although many road atlases of this period survive, the binding is what makes this one unusual. Its appearance caused a certain amount of excitement in the Map Room as some of us had heard of road atlases being made to this design, but had never seen one before. Unsurprisingly the soft backed versions are less likely to have survived, being less robust and more heavily used than the hardbacks. The fact that this one has the notes relating to a previous owner’s journeys makes it additionally interesting…
A traveler’s companion: “On the road,” at @bodleianlibs.
* Nelson DeMille
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As we plan a route, we might ponder a very specific path, recalling that today– and every June 16– is Bloomsday, a commemoration and celebration of the life of Irish writer James Joyce, during which the events of his novel Ulysses (a modern classic set on this date in 1904) are relived: Leopold Bloom goes about Dublin, James Joyce’s immortalization of his first outing with Nora Barnacle, the woman who would eventually become his wife.
The first Bloomsday was observed on the 50th anniversary of the events in the novel, in 1954, when John Ryan (artist, critic, publican and founder of Envoy magazine) and the novelist Brian O’Nolan organized what was to be a daylong pilgrimage along the Ulysses route. They were joined by Patrick Kavanagh, Anthony Cronin, Tom Joyce (a dentist who, as Joyce’s cousin, represented the family interest), and AJ Leventhal (a lecturer in French at Trinity College, Dublin).
“It is better to have your head in the clouds, and know where you are… than to breathe the clearer atmosphere below them, and think that you are in paradise”*…
Take a ride from the earth’s surface to the Kármán line (the conventionally-acknowledged boundary between Earth’s atmosphere and outer space) on Neal Agarwal‘s (@nealagarwal) Space Elevator.
* Henry David Thoreau
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As we get high, we might recall that this date in 1970 was the first Earth Day. First suggested by John McConnell for March 21 (the Equinox in the Northern Hemisphere, a day of natural equipoise), Secretary General U Thant signed a UN Proclamation to that effect. But Earth Day as we know it was founded by U.S. Senator Gaylord Nelson (who was later awarded the Presidential Medal of Freedom Award for his work) as an environmental teach-in to be held on on this date. The first Earth Day had participants and celebrants in two thousand colleges and universities, roughly ten thousand primary and secondary schools, and hundreds of communities across the United States. Later that year, President Nixon signed the Environmental Protection Agency into being. Earth Day is now observed in 192 countries, coordinated by the nonprofit Earth Day Network, chaired by the first Earth Day 1970 organizer Denis Hayes– according to whom Earth Day is now “the largest secular holiday in the world, celebrated by more than a billion people every year.”
Earth Day Flag created by John McConnell
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