All About Diffusion

Definition

Diffusion in geography refers to the spreading out or dissemination of something - usually information, ideas or innovations - from a central point across space over time.

Analogy

Picture diffusion like dropping food coloring into water; it starts at one point but eventually spreads out evenly throughout all parts of water over time.

Related terms

Relocation Diffusion: This type occurs when people move from their original location to another, bringing their cultural traits with them. Like carrying a cup filled with colored water (culture) from one place (original location) to another (new location).

Expansion Diffusion: Expansion diffusion happens when an idea or innovation spreads outward from its origin while remaining strong in its original area. It’s like lighting up several candles using flame from one original candle.

Contagious Diffusion: This is a type of diffusion where a cultural trait or idea spreads outward into new areas through person-to-person contact, much like how a virus spreads.