ETH Zurich uses lab-grown muscle to make 1.5-centimeter robot jump 5 millimeters in a single contraction

Researchers at ETH Zurich changed how muscle connects to the frame, enabling a 1.5-centimeter robot to jump 5 millimeters with a single muscle contraction. They designed the muscle together with a flexible 3D-printed scaffold; tiny grooves on the scaffold help muscle fibers align neatly and provide firm anchor points for force.