Tiny, knotted robots jump, fly, and plant seeds | Penn TodayPublished bypenntoday.upenn.eduon •1 min readWhen a knot lets go, it doesn’t just fall apart. It snaps.Technology June 17 2026TechnologySchool of Engineering & Applied ScienceRoboticsFacultyPostdocsResearchNatural SciencesBusiness & LawSocial SciencesLearn moreShareLegalReport