This robotic rehabilitation device from Northeastern University uses electrically responsive fluid in its gears to adjust resistance as a patient performs gripping exercises. A patient who is recovering from a stroke, for example, could use the device to strengthen motor control as she plays a maze game.
This robotic rehabilitation device from Northeastern University is designed to let patients exercise hand and forearm muscles while in an MRI machine. Using a stroke-rehabilitation device in an MRI might let a doctor see the effects of the exercise on the brain.
A clever flute-playing robot offers an impressive rendition of Flight of the Bumblebee. Its “lungs” consist of a bellow that moves air in and out, and its “tongue” can block air in two places to transition between notes. Its “vocal cords” are a vibrato device that can change vibrations according to the air flow, and it even has elastic “lips” that can control its airstream, changing in width, thickness, and angle as it plays.