Experimental Soft Condensed Matter Group Harvard University, Prof. D. A. Weitz Cool Picture of the Moment

It is an emulsion with a solution of 10mM ortho terphenyl in toluene as the dispersed phase, and deionized water/SDS as the continuous phase. As you can see, there is some spontaneous ordering in a crystalline pattern. The image was taken 2 full days after emulsion creation, so it is very stable. The droplets are approximately 35 microns in diameter.

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Past cool pictures...