Tracking a levitated nanoparticle with a mirror

Sensing with levitated nanoparticles has so far been limited by the precision of position measurements. Now, researchers have demonstrated a new method for optical interferometry in which light scattered by a particle is reflected by a mirror. This ope…

Sleep added to cardiovascular health checklist

American Heart Association’s checklist to measure cardiovascular health is updated, now called Life’s Essential 8™, adding healthy sleep as essential for optimal cardiovascular health. Other health and lifestyle factors in the checklist, which were par…