Robot bird swims underwater then flies away

Engineers have created a robot that can both swim underwater and launch itself back into the air, mimicking the behavior of a puffin. The bird-scale robot is the first of its kind to combine diving, swimming, and flight capabilities in a single device.

The robot was developed by a team at MIT, and its design is inspired by the puffin, a seabird that can fly and dive for fish. The robot uses flapping wings to propel itself through water and air, allowing it to transition seamlessly between environments. This innovation could affect fields such as environmental monitoring, search and rescue, and wildlife observation, where robots that can operate in multiple mediums are highly valuable.

The ability to swim and fly is significant because it enables the robot to access areas that are difficult for traditional drones or underwater vehicles to reach. For example, it could be used to study marine life or inspect underwater infrastructure without needing separate devices for air and water. The robot's design addresses the challenge of moving from water to air, which requires overcoming drag and generating enough lift.

According to reports, the robot weighs about the same as a real puffin and can flap its wings to swim underwater before launching upward. The MIT team conducted tests showing the robot can dive, swim, and then take off from the water's surface. Specific numbers on speed or depth were not provided in the source material, but the robot is described as being at the bird scale.

This development builds on earlier work in bio-inspired robotics, where engineers have long sought to create machines that mimic animal movements. Previous robots have been able to fly or swim, but combining both in a small, lightweight package has been a challenge. The MIT team's success with the puffin-inspired design marks a step forward in multi-environment robotics.

Looking ahead, the researchers plan to refine the robot's efficiency and control, potentially leading to practical applications in the near future. The robot could eventually be deployed for tasks like monitoring coastal ecosystems or assisting in disaster response, where it can move through air and water to reach victims or gather data.