Microrobots and Their Uses | Smallest Robot

Microrobot smallest and lightest wireless microrobot, developed by a research team from Tsinghua University, Beijing, China. 
This robot is approximately 9 cm long and weighs 25 grams, but is designed to be highly flexible and able to dynamically change shape. How this robot works and its uniqueness 

This robot uses small-scale, thin-film actuators that function like the robot's "heart"; these actuators can change shape and then "lock" the new shape in real time, similar to the Transformer concept. The design is inspired by Lego, allowing functional components (sensors, motors, etc.) to be assembled modularly and coordinated within a single small robot body. 

The main use of this microrobot is Equipment diagnosis and inspection: it can enter narrow spaces (e.g., machines, pipes, or industrial equipment) to check for damage or component condition without the need for dismantling. 

Geological and hazardous environment surveys: can explore high-risk areas (e.g., collapsed tunnels, disaster areas, or places hazardous to humans) to collect data and map conditions. Multimodal robots: can move on land (roads/surfaces) and also fly briefly in the air, making them more flexible to traverse various terrains. 

Future medical and VR/AR applications: the same actuators can be developed for implantable medical devices (in-body assistive devices) or touch interfaces (haptics) in virtual reality/augmented reality. 

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