Map projections and distortion
Goodbye to lying about being busy so you can stay in bed. A week ago, Snapchat introduced Snap Map, a new feature that lets you see where all your friends are. image. Snapchat It's the one part of Harry Potter you wish weren't real. sooooo we just image How to Glow Up Your Love Life in The standard classroom maps we all learned geography from are based It succeeds in presenting a more accurate view of the poles, but at the cost of . All Euclidean maps of Earth's surface must be distorted, folded, or cut. Now, perhaps you understand. All maps are a lie, but they all lie about different parameters. Thus, the things that are chosen to be distorted in a map provides us .
Home to six time zones, its endless plains spread from ocean to ocean, dominating great swathes of the northern half of the globe.
The Map You Grew Up With Is A Lie. This Is What The World Really Looks Like | IFLScience
But, in reality, three Canadas would comfortably fit inside Africa. Our world map is wildly misleading. It's all down to the European cartographer Geert de Kremer, better known as Mercator, and his 16th century map projection -- a common template for world maps today -- which distorts the size of countries.Popular Map Of The World Is A Lie
Now, schools in Boston are taking a stand against the tradition by introducing the lesser-known Peters projection from the s also called Gall-Peters projection in classrooms, to teach children the real size of the continents. The move is part of a wider initiative to remove bias within education. Read More The initiative will see students comparing different maps.
The Peters projection maps areas in their actual sizes relative to each other, but in doing so distorts their shapes. Though a convenient way to chart the world, Mercator's map distorts proportions, making some landmasses larger that they are in reality.
Mercator initially made globes.
The Map You Grew Up With Is A Lie. This Is What The World Really Looks Like
Later transferring his map from a three-dimensional curved surface to a flat sheet of paper was problematic. Taking the equator as the logical map center left big, confusing gaps near the poles.
- What's the real size of Africa? How Western states used maps to downplay size of continent
Compare the relative sizes of Greenland and South America in one and then the other. The Orthographic projection preserves direction.
The Azimuthal Equidistant preserves both distance and direction. The Winkel Tripel is a compromise projection.
Why do Western maps shrink Africa? - CNN
More about scale Scale is the relationship between distance on a map or globe and distance on the earth. Suppose you have a globe that is 40 million times smaller than the earth.
Its scale is 1: Any line you measure on this globe—no matter how long or in which direction—will be one forty -millionth as long as the corresponding line on the earth.
In other words, the scale is true everywhere. This is because the globe and the earth have the same shape disregarding the complication of sphere versus spheroid. But the AuthaGraph may be the pinnacle of accuracy. No Accurate Maps For centuries, cartographers have made numerous attempts to account for the inconsistency. Maps are compromises between distorting the angles of latitude and longitude lines and the relative areas of the continents and oceans.
Some were made for specific purposes, while others just tried to find the cartographic sweet spot. The problem was so widespread that a French mathematician even developed an eponymous equation to quantify the degree of distortion that a map experienced.
Here are a few of the different ways cartographers have tried to depict the Earth.
This map bowed out the equator in an attempt to replicate the topography of a sphere and avoid stretching out areas far from the equator. It succeeds in presenting a more accurate view of the poles, but at the cost of misshapen continents and bent meridians.
Areas near both the equator and prime meridian are accurate, but the distortion gets worse the further you go from either. This attempt at creating a faithful world map took a similar tack to the Sinusoidal by pulling out the edges of the map to mimic a sphere.
The map was an attempt at a compromise between distorting the areas of continents and the angles of coordinate line. A more outside-of-the-box example of mapmaking ingenuity, the Bonne Projection actually dates back to the 16th century.