🧪 Experiment

Computer fit of the Atlantic continents (Bullard, Everett and Smith)

Ajuste informático de los continentes del Atlántico (Bullard, Everett y Smith)

Date
1965 · confidence high
Place
Cambridge, England, United Kingdom
Credited to
Edward Bullard, James Everett and Alan Smith
Field
Cosmos & Earth

What was discovered

Using a computer, Bullard, Everett and Smith fitted the continents around the Atlantic along the 500-fathom isobath through rotations on a sphere, obtaining a fit with minimal overlaps and gaps. It gave quantitative strength to an idea that had so far rested on intuition.

It is one of the first applications of computers to geology. Carey (1955) and others had already made fits on spherical models.

What it led to

  • Pangaea reconstructions with Euler poles
  • acceptance of drift by the geological community
🕸️ View in the graph

Built on

Made possible

Links

Sources✓ verified 2026-11-06