avatar
z*l
1
问一个愚蠢的问题:我怎么看都觉得北美洲比非洲大,为啥说非洲是第二大州?
avatar
r*y
2
projection illusion.
remember the area is proprotional to cos(lat)
This is why from 30S to 30N, the area is half of the total spherical
area.
Afica has a big chunk in tropics, while North American is really
further polarward a lot.

【在 z***l 的大作中提到】
: 问一个愚蠢的问题:我怎么看都觉得北美洲比非洲大,为啥说非洲是第二大州?
avatar
z*l
3
Thanks!

spherical

【在 r****y 的大作中提到】
: projection illusion.
: remember the area is proprotional to cos(lat)
: This is why from 30S to 30N, the area is half of the total spherical
: area.
: Afica has a big chunk in tropics, while North American is really
: further polarward a lot.

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