The patch uses LED lights to guide chest compressions during CPR. (AI photo) Performing cardiopulmonary resuscitation (CPR) during an emergency can be difficult for someone without proper training. Even when a bystander is willing to help, getting the depth and speed of chest compressions right can be challenging. Four University of Washington students have developed…

PC: Study: Geometry-controlled instability pathway selection in elastic helices enables fast, efficient robotic locomotion​ Researchers have developed a small, untethered robot that uses snapping elastic rods to hop across sand, grass, glass-like acrylic and other surfaces, as well as swim in water. According to the study published in Science Advances, titled ‘Geometry-controlled instability pathway selection…