Physarum machines imitating a Roman road network: the 3D approach

Area of Science:

• Biocomputing and Slime Mold Dynamics
• Archaeological Modeling
• Network Theory

Background:

• Physarum polycephalum, an acellular slime mold, exhibits complex behaviors through a network of bio-chemical oscillators.
• Its foraging behavior forms networks similar to transport systems, previously applied to archaeological GIS.
• Prior studies were limited by 2D substrates, failing to account for topographical variations.

Purpose of the Study:

• To overcome the limitations of 2D models by developing a 3D simulation of slime mold foraging.
• To investigate the slime mold's network formation in a realistic topographical context.
• To explore potential insights into the development of Roman roads in the Balkans.

Main Methods:

• Construction of a three-dimensional model of the Balkan region.
• Laboratory experiments with Physarum polycephalum on the 3D model.
• Computer modeling to simulate slime mold foraging behavior and network formation.

Main Results:

• The 3D model successfully simulated slime mold foraging, incorporating elevation patterns.
• Observed network patterns showed similarities to historical transport routes.
• The study identified foraging patterns potentially mirroring Roman road development in the Balkans.

Conclusions:

• Physarum polycephalum's 3D foraging behavior provides a novel approach to understanding ancient infrastructure development.
• The 3D modeling overcomes previous limitations, offering more realistic insights into network formation.
• This research bridges slime mold biology, network science, and Roman history in the Balkans.