Glycerol Droplets Moving through a Salt Solution, 2018 by Phred Petersen from RIT Photo on Vimeo.

Phred Petersen

Glycerol Droplets Moving through a Salt Solution, 2018

High-speed video; Phantom VEO 640S camera; Micro-NIKKOR 200mm lens; 1600 fps; resolution of 2560x1440 pixels

RMIT University
Melbourne, Victoria, Australia

Two glycerol droplets were dropped, one after the other, into a solution of magnesium sulfate (MgSO4) to visualize the flow and folding behavior of a viscous liquid moving through a less-viscous environment. This has relevance to the field of microfluidics. Rheinberg illumination was used to optically color the different liquids.