New robots without batteries draw energy from external chemical bonds

The authors of the new work have created a robot on wheels that can navigate the environment without

computer.

This is in some way  a rudimentary form of navigation, which is tailored to search for an energy source: the robot is automatically directed to metal surfaces. 

If you change the space around the robot according to certain algorithms of its movement, then you can perform various logical operations based on the presence or absence of its power source.

By understanding the types of signals that the robot picks up, researchers can develop various ways to incorporate them into the robot's design to achieve the desired type of navigation.

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