Robojelly - the name of the robot jellyfish - circular muscles are used for opening and closing bells of its body. Close-open operations of Robojelly body sprayed water out and helps create thrust it forward. The body of the robot is made up of eight pieces of metal. The team coated with platinum black powder, which powder has the ability to interact with oxygen and hydrogen in seawater to produce heat. The amount of heat that spreads to the artificial muscles of Robojelly causing them bending and pushing the water out. Once there, the robot's body recovers its original shape.

"According to our knowledge, this is the first time scientists successfully created a robot capable of using hydrogen from the external environment for fuel," Tadesse said.
Now Robojelly can only move in one direction because eight elastic pieces of its body at the same time. The team will continue to improve for the piece of elastic to the different times, so that the robot will move in different directions.
Tadesse's invention and his colleagues published in the journal Smart Materials and Structures of the British Institute of Physics.