"We've shown that water waves can be used to precisely move floating objects as small as rice grains. Future research could study even smaller waves such as those on the scale of cells that are ...

They call their system a form of "water tweezers" because it allows for manipulation of small amounts of water ... even at the scale of ocean waves. More information: Bo Wang et al, Topological ...

P-waves are the faster seismic waves, while S-waves are slower and cannot travel through water because liquid does not permit that kind of oscillation perpendicular to motion. Seismometers ...