Tracking neural activity, muscle movement in hydra (Image 1)

Rice University graduate student Elaa Hilou sets up an experiment to study the effect of a spinning magnetic field on a colloid of micron-sized magnetic particles. [Image 1 of 7 related images. See Image 2.] More about this image Jacob ...This is an NSF Multimedia Gallery item.
Source: NSF Multimedia Gallery - Category: Science Source Type: video