Hovering UFO Droplets
  This fluid dynamics video is an entry for the Gallery of Fluid Motion of the 65th Annual Meeting of the APS-DFD. This video shows behavior of condensing droplets on a lubricant impregnated surface and a comparison with a superhydrophobic surface. On impregnated surfaces, drops appear like UFOs hovering over a surface. The videos were recorded in an Environmental SEM and a specially built condensation rig. 
Sushant Anand, Adam Paxson, Rajeev Dhiman, J. David Smith and Kripa K.   Varanasi
physics.flu-dyn