A New Era of Minimalist Robotics
In a major leap for robotics, researchers from Harvard University and Seoul National University have developed a new class of swarm robots that can move, coordinate, and adapt—without any code, sensors, or centralized control. These innovative machines, called “link-bots,” represent a shift in how scientists think about robotic intelligence. Unlike traditional robots, these achieve coordination through physical design rather than computation.
How Link-Bots Work
Each link-bot is a self-propelled unit connected to others in a flexible chain. By changing the angles and tension between links, the swarm can collectively move forward, rotate, or stop. As a result, these robots perform group tasks without using any electronics or programming. Instead, their intelligence comes purely from their mechanical structure and how they interact physically.
Inspired by Nature
This minimalist approach is inspired by natural systems, such as worm colonies and tissues, where complex behaviors emerge from local interactions. Even though the link-bots lack sensors, they can squeeze through tight spaces, carry loads, and reconfigure their shape—demonstrating surprising adaptability.
Applications in Real-World Challenges
Therefore, these robots are ideal for environments where electronics might fail—such as disaster zones, collapsed buildings, or remote terrains. Moreover, their energy efficiency and low cost make them scalable for use in large numbers.