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Why do we always “cut” a globe down the Pacific Ocean to make a map instead of the Atlantic Ocean?

Sarah Jenkins
Sarah Jenkins
Lead Content Curator · Jan 11, 2026 · Updated Apr 13, 2026

The Prime Meridian (0 degrees longitude) runs through the UK and is usually right in the center of a world map. To the right are the eastern longitudes, and to the left are the western longitudes. This matches real life because if you face north, east is to the right and west is to the left.

82
Words

1 min
Read Time

#185
of 500 in Nature

+15%
vs Category Avg

The Short Answer

The Prime Meridian (0 degrees longitude) runs through the UK and is usually right in the center of a world map. To the right are the eastern longitudes, and to the left are the western longitudes. This matches real life because if you face north, east is to the right and west is to the left. It also goes back to when the world was Eurocentric, where Europe was the dominant power in the world and therefore in the centre of the map.

Analysis

Key Concepts: Right, world, longitudes

This explanation focuses on right, world, longitudes and spans 82 words across 4 sentences. The depth is typical for Nature questions (category average: 71 words), striking a balance between accessibility and completeness.

What This Answer Covers

The explanation opens with: “The Prime Meridian (0 degrees longitude) runs through the UK and is usually right in the center of a world map.” It then elaborates by explaining the root cause, ultimately building toward a complete picture across 4 connected points.

How This Compares in Nature

Ranked #185 of 500 Nature questions by answer depth (top 38%). This falls in the detailed tier — above average depth. The explanation goes beyond surface-level but keeps things accessible.

Frequently Asked Questions

Is there a simple explanation for why we always "cut" a globe down the pacific ocean to make a map instead of the atlantic ocean?

The Prime Meridian (0 degrees longitude) runs through the UK and is usually right in the center of a world map. To the right are the eastern longitudes, and to the left are the western longitudes. This matches real life because if you face north,…

How detailed is this explanation compared to similar Nature questions?

This is an above-average answer at 82 words, ranked #185 of 500 Nature questions by depth. The key concepts covered are right, world, longitudes.

What approach does this answer take to explain we always "cut" a globe down the pacific ocean to make a map?

The explanation uses root cause analysis across 82 words. It is categorized under Nature and addresses the question through 1 analytical lens.