地圖故事
認識國家面積、投影方法與邊界資料。讀完故事，再到互動地圖上驗證。
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格陵蘭為什麼看起來那麼大？
麥卡托地圖會放大靠近兩極的地區。因此，與赤道附近的國家相比，格陵蘭可能顯得比實際更大。在 Equal Earth 上搜尋格陵蘭和澳洲，比較它們的輪廓。熟悉的地圖是否影響了你的判斷？適合航行的地圖未必適合比較面積。
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Equal Earth 保留了什麼
把球面展開成平面必然改變某些特徵。Equal Earth 保留相對面積，適合比較國家大小，但不能同時保留所有形狀、距離和方向。切換到地球儀，觀察邊緣國家的壓縮。根據問題選擇地圖，而不是期待一張地圖解釋一切。
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邊界和面積為何不同
簡化地圖會省略小海灣和島嶼。本地圖使用 Natural Earth 的 1:1.1 億邊界，並根據簡化的球面幾何計算面積。官方統計對水域或領土的定義可能不同。≈ 表示這裡顯示的是估算值。
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Africa is bigger than the map in your memory
The equator crosses Africa, but familiar rectangular maps give northern regions extra space. Compare Africa with countries you know to get a sense of its size.
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Russia and Africa: width is not area
Russia stretches across the top of many world maps. Compare that visual width with area, and learn why a country and a continent need different labels.
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Japan and Germany: a long shape can hide a similar area
An island chain and a compact mainland country look very different. Compare area without confusing the sea between islands with land.
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Why online maps stop before the poles
Square tiles make a world map easy to zoom, but Mercator cannot place the poles at a finite height. Learn what the missing polar strip means.
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Why a country looks smaller at the globe’s edge
A globe avoids the familiar rectangular world, but its screen image still compresses the edge. Separate spherical area from visible footprint.
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Why the shortest flight looks curved on a map
A straight line on the screen need not be the shortest path around Earth. Compare great-circle paths with compass bearings, and see what a route illustration can tell you.
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The map edge is not the International Date Line
Longitude wraps around, a flat map has a seam, and calendar dates have a boundary. These three ideas are related but not identical.
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Antarctica is a continent, not the bottom border
A stretched southern strip can hide the shape of a whole continent. Compare Antarctica on Mercator, Equal Earth and a polar globe view.
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Pangaea was not there at the start of every timeline
At 600 million years ago, Pangaea had not yet assembled. Follow separated landmasses as they come together and later drift apart.
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Five questions before sharing a “true world map”
Projection, zoom, viewpoint, source detail and the meaning of area all affect how you read a map. Check these before sharing a comparison screenshot.
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