Coupled Rössler Systems Help Generate Insect-Like Gaits for Tiny Robots Written by AZoRoboticsDec 16 2020 Scientists from Italy and Japan have been using chaos and nonlinear physics to develop insect-like gaits for small robots, which are complete with a locomotion controller to offer a brain-machine interface. View of the experimental robot and coupling schemes for its gaits. Image Credit: Ludovico Minati. Physics and biology are imbued by universal phenomena grounded mainly in nonlinear physics and the researchers were motivated by this fact. In the journal Chaos, from AIP Publishing, the team explains the use of the Rössler system—a system of three nonlinear differential equations—as a foundational stone for central pattern generators (CPGs) to regulate the gait of a robotic insect.