Seek all the detailed knowledge structures of world geography

1. The largest sea: the Coral Sea (more than 4.79 million square kilometers), followed by the Arabian Sea and the South Keys Sea.

2. The smallest sea: the Sea of Marmara, followed by the Sea of Azov and the Bohai Sea.

3. The sea with the highest salinity: the Red Sea, which is also the youngest.

4. The sea with the lowest salinity: the Baltic Sea.

5. The only sea without a coastline: Sargasso Sea.

6. The sea with the most islands: the Aegean Sea.

7. The most famous tide: Qiantang River tide.

8. The largest ocean: The Pacific Ocean is also the deepest, the water temperature is the highest, and the manganese nodules are the most.

9. The smallest ocean: the busiest ocean in the Arctic Ocean.

10. The largest ocean current: westerly drifting, which is also the largest cold current.

11. The Warm Current of the Largest Draft God: The Mexican Warm Current.

12. The largest archipelago: the Malay Archipelago.

13. The highest island: New Guinea Island, which is also the largest island divided into two countries.

14. The only island that belongs to the three countries: Kalimantan.

Summary. In compiling this atlas, Alidris's drew on various charts, travel accounts, and historical documents of the time. He also conducted extensive expeditions and surveys on his own, gathering information on the sea, mountains, rivers, and cities.

This makes his atlases not only accurate, but also rich in vivid depictions and rich details. In addition, the atlases of Alidris, which also had a profound influence on later geographers and explorers. It inspired the European Age of Discovery and promoted the development and exchange of geographical knowledge in the world.

As a result, Alidris, known as one of the great masters in the history of geography. The atlas of Alidris, which not only shows the geographical knowledge of the time, but also depicts various myths and legends. For example, he believes that there is a mysterious volcanic island in the center of the Atlantic Ocean called Antilla.

This idea influenced later geographers and writers, such as the island of Lapdani in Jonathan Swift's Gulliver's Travels was based on this idea.

The great Arab geographers of the Middle Ages compiled the atlas of the world.

Hello, the preeminent geographer of medieval Arabia was Al-Idris. In the 11th century, he compiled a world atlas called the World Map of Idris. The atlas includes 70 maps, as well as a variety of geographical, historical, and cultural information.

It made a great contribution to the geographical knowledge and understanding of the world in the middle cherry blossom banquet century, and became an important reference for later map making.

Alidris's compilation of this atlas consulted various charts, travel accounts, and historical documents of the time. He also conducted extensive expeditions and surveys on his own, gathering information on the sea, mountains, rivers, and cities. This makes his atlases not only accurate, but also rich in vivid depictions and rich details.

In addition, the atlases of Al-Id's Jazaris also had a profound influence on later geographers and explorers. It inspired the European Age of Discovery and promoted the development and exchange of geographical knowledge in the world. As a result, Alidris, known as one of the great masters in the history of geography.

The atlas of Alidris, which not only shows the geographical knowledge of the time, but also depicts various myths and legends. For example, he believes that there is a mysterious volcanic island in the center of the Atlantic Ocean called Antilla. This idea influenced later geographers and writers, such as the island of Laputani in Jonathan Swift's Gulliver's Travels, which was based on this idea.

As mentioned earlier, maps involve all aspects of our lives, because with maps, geography has found its own language, and the common longitude and latitude grid system on the map is an imaginary grid system for geographers to position.

So, here's the problem.

Imagine that now I give you a pear, there is a portrait of Xiangyuan on the surface of the pear, I want to photograph the portrait on the pear on the floor plan, in the absence of electronic technology, how to operate?

I'm looking forward to reading the article and thinking about it.

The maps we see in life are basically floor plans, but the earth is spherical, how to project things on the surface of the earth onto the plan?

That is, what should I do if I want to draw the three-dimensional appearance of the earth onto a two-dimensional plane?

Take advantage of map projections.

The so-called map projection is a method of depicting the surface of the earth onto a flat map, including equal area projection, forward projection, equidistant projection, azimuth projection, etc.

Most of the floor plans we see are not depicted in a single projection method, but a combination of several projection methods and a compromise approach.

Therefore, only the globe can accurately represent the appearance of the earth on the map we see in our lives.

Most of the other flat circles distort the area, shape, distance, and direction of the earth's surface in different ways and to varying degrees.

After recognizing and thinking about the many ways in which the face of the earth is drawn on a plan, it is still a little ashamed to think about it.

In addition to the complexity and variety of drawing methods, the scale on the map, each symbol and symbol, is determined by in-depth research and repeated scrutiny to select the most suitable geographical things to be reflected in a certain area.

So every map you see, there's a lot of complex knowledge system behind it.

After studying geography for so many years, and having seen and used so many maps, it is rare to doubt the information conveyed by the map.

With a total land area of about 9.6 million square kilometers, it is the third largest country in the world.

It mainly introduces China's borders and administrative divisions; China's agriculture, industry, and transportation industries; Business and tourism in China.

Khan Maruko Where is it copied again? b Khan.