Ray controlled by light

The robot’s heart cells have been genetically manipulated to contract when affected by light of a specific wavelength. This is what makes the robot move.

Motion

1 The heart cells are placed in a pattern that makes the front cells pull at the skeleton first. Subsequently, the motion gradually spreads backwards like a wave, making the robot move smoothly forward in the water.

Control

2 The cells on either side of the robot are activated by different wavelengths. When both light sources are activated, both sides contract, making the robot swim straight ahead. When only one light source is activated, the robot moves one side - it turns.

The cells of either side are activated by light of different wavelengths, so the robot either swims with one side or with the other.