Microrobot swarms use whirlpools to lift objects and manipulate obejcts without physical contact

Magnetic microrobot swarms in action. Pic Courtesy/Cornell University

Researchers have commanded swarms of magnetic microrobots to manipulate, rotate, and assemble objects without ever making physical contact. Instead of physical contact, these 300-micrometer robots use fluidic torque - creating controlled whirlpools in the surrounding liquid to exert force on larger objects.

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