The high adaptability of microrobot swarms to their surroundings and high autonomy level in swarm control were surprising, says Jeong Jae Wie of Hanyang University.
Swarms with a high aspect ratio assembly could climb an obstacle five times higher than the body length of a single microrobot and hurl themselves over an obstacle.
A swarm of 1,000 microrobots formed a raft that floated on water and wrapped itself around a pill weighing 2,000 times more than each individual robot.
On dry land, a microrobot swarm transported cargo 350 times heavier than each individual, showcasing remarkable capability in overcoming obstacles.
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