◉Earth, to Human
Zoom from Earth’s core to the surface, then to a single human. Discover mountains, wells and buildings at their true scale.
Interactive Earth Science: From the Core to a Human
From inside a planet to one point on its surface.
Earth has a mean radius of about 6,371 kilometres, yet ordinary human activity occupies a thin band around its surface. A continuous cross-section zoom connects the core, mantle and crust to familiar mountains, buildings and people.
Height and depth comparisons require consistent definitions. Measured well length differs from vertical depth, ocean depths refer to sea level, and cloud and cruise altitudes vary. Source notes identify illustrative values and locator symbols.
Questions to explore
- How large is an 828-metre building when the complete Earth fits on screen?
- What fraction of Earth’s radius does a ten-kilometre well reach?
- Which planetary structures leave the view when you zoom to one human?
