Trajectoid

A trajectoid is a three-dimensional object designed to follow a desired path. The term was coined by Bartosz Grzybowski and his colleagues from the Institute for Basic Science in Ulsan, South Korea.<ref>"Shapes are programmed to roll along specific downhill paths". Physics World. 2023-08-14. Retrieved 2023-09-10.</ref> A mathematical algorithm to design trajectoids was developed by researchers in South Korea and a colleague from the University of Geneva in Switzerland.<ref>Yirka, Bob; Phys.org. "An algorithm that shapes objects to cause them to roll down ramps following a desired path". phys.org. Retrieved 2023-09-10.</ref><ref name=":0" /> These objects, and the ability to design them, may be useful in mechanisms in the medical field or in industrial production. These applications have not been materialized and trajectoids are mainly an exercise of research.<ref name=":0">Clark, Lindsay. "Researchers' 'trajectoids' roll down pre-determined paths". www.theregister.com. Retrieved 2023-09-10.</ref>

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