Coastline Paradox Online

Using a 50 km ruler allows you to "fit" into more curves and bays, increasing the total length to 3,400 km.

The is the counterintuitive observation that the length of a coastline does not have a well-defined value; instead, it increases as the unit of measurement decreases. 🌊 The Core Concept Coastline Paradox

The phenomenon was first systematically studied by Lewis Fry Richardson in the 1950s after he noticed that Spain and Portugal reported vastly different lengths for their shared border. It was later popularized by Benoit Mandelbrot , who pioneered the study of fractals. Key Players in the Discovery Using a 50 km ruler allows you to

The "paradox" exists because coastlines are not smooth geometric shapes like circles or squares. Instead, they have fractal-like properties , meaning they are "jagged all the way down". It was later popularized by Benoit Mandelbrot ,