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Related:  Outils cartographiques - Les projections cartographiquesCARTESBureautique

Map Projections: Flatten the Sphere - GIS Geography Why use map projections? The best way to represent the Earth is with a globe. We live on one big blue marble that’s the shape of a sphere (or close to it) But globes are hard to carry in your backpack, you can only see one side of the globe, it’s hard to measure distances and they’re just not as convenient as paper maps. This is why we project globes on two-dimensional planes with map projections. For the GIS analyst to make use of points, lines and polygons, it is necessary to locate them in two dimensions. OpenStreetMap Where is this? Reverse Directions Welcome to OpenStreetMap! OpenStreetMap is a map of the world, created by people like you and free to use under an open license. Hosting is supported by UCL, Bytemark Hosting, and other partners. Learn More Start Mapping

What popular science books have changed the world? Half a century ago, biologist Rachel Carson wrote a popular science book that exposed the impact of chemical pesticides on the natural environment and stirred fierce debate in society. Silent Spring was a near instant bestseller, and though Carson died less than two years after it was published, her legacy persists; the work helped to launch the American environmental movement and continues to inspire people today. Silent Spring is just one example of the profound impact of popular science writing. Science is the most powerful tool we have for analysing and making sense of the world, and there is rich history of books that promote its wider understanding.

20 Color Combination Tools for Designers Being able to select the right colors is key in designing an effective and intriguing design, whether for the web or for print. If you’re able to achieve a good balance within your design, then it’ll communicate a stronger message much more easily to the users or readers because certain colors “activate” certain types of emotions. If you’d like to read more about choosing the right color scheme and the psychology of colors, I invite you to read the following articles: Color Combination Tools

Boston public schools map switch aims to amend 500 years of distortion When Boston public schools introduced a new standard map of the world this week, some young students’ felt their jaws drop. In an instant, their view of the world had changed. The USA was small. free.onlinemapfinder Please read carefully: By checking the box and clicking the button, you agree to install the OnlineMapFinder Homepage & New Tab and to receive future updates or upgrades released including for performance and compatibility purposes. Your use is governed by the End User License Agreement. You can uninstall the program at any time. Your information will be collected, used and disclosed in accordance with our Privacy Policy. Access Earth map street view, map street views, Florida state map with cities, maps of Texas with cities and more streetmaps. With the OnlineMapFinder New Tab, you can find the most accurate maps with street views, traffic reports and the best directions.

free university lectures - computer science, mathematics, physics, chemistry Whether your goal is to earn a promotion, graduate at the top of your class, or just accelerate your life, lectures can help get you there. Our archives of lectures cover a huge range of topics and have all been handpicked and carefully designed by experienced instructors throughout the world who are dedicated to helping you take the next step toward meeting your career goals. Lifelong learns can turn their free time turn into self-improvement time. The online lectures on this list are more than lecture notes or a slideshow on a topic -- they were designed for audiences like you, with carefully sequenced themes and topics taught by veteran educators, and often with additional resources for your own independent study.

Best Websites To Download High Quality Free Vector Images There are many websites to download free vector images, but when it comes to Free High Quality Vector Images, you really have to browse deeper. Good for you, we have done all the digging to find some of the best websites to download free high quality Vector images. Please be careful about the copyright issues and make sure you give necessary credits wherever necessary!! Your maps are not lying to you – Medium Or, your maps are lying to you but so would any other map. A week or two ago [edit: by now, sometime last year] a journalist must have discovered thetruesize.com, a nifty site that lets you explore and discover how sizes of countries are distorted in the most common world map, and thus was born another wave of #content in the sea of web media. Your maps are lying to you!

Google Street View – Explore natural wonders and world landmarks Zhoucun Ancient Town Zhoucun ancient commercial town now is national AAAA level tourism scenic spot, cradle land of Lushang culture, demonstration base of national culture industry, provincial level key cultural relic protection unit, provincial level civilized scenic spot, provincial level patriotic education base and one of top ten film shooting bases in Shandong. The total area of planning scenic spots is 4.92 sq.m, having protection area, control area and transition area. The protection area consists of historical cultural streets and districts such as: Da Jie (the main street), silk market street and silver market street.

Tree of Life Web Project The Tree of Life Web Project (ToL) is a collaborative effort of biologists and nature enthusiasts from around the world. On more than 10,000 World Wide Web pages, the project provides information about biodiversity, the characteristics of different groups of organisms, and their evolutionary history (phylogeny). Each page contains information about a particular group, e.g., salamanders, segmented worms, phlox flowers, tyrannosaurs, euglenids, Heliconius butterflies, club fungi, or the vampire squid. ToL pages are linked one to another hierarchically, in the form of the evolutionary tree of life.

45 Beautiful Minimalist Desktop Wallpapers Minimalist style is known for its simplicity and clean look. Many designers create awesome graphics by following this trend, even photographers have adopted this particular style. Here we are featuring a showcase of 45 minimalist wallpapers which are simple and clean enough to decorate your desktop. Trading One Bad Map for Another? - Atlas Obscura Earlier this month, the social studies classrooms of Boston Public Schools underwent a slight but significant change in decor. Down came the Mercator Projection—a common choice of world maps for schools—which distorts the size of each land mass but keeps continental shapes intact. Up went a different map, the Peters, which stretches out the world in order to give each continent a proportionally accurate amount of room.

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