My grandparents’ house at Christmastime always had a strange array of Old World treats and candies that I never found anywhere else in my daily life. Pazzellas, Odd Christmas cookies, strange flavors decorated their table for the guests in a strange mix of West Virginia, Italian, and Hungarian food traditions…

Screen capture of 3d printed tree structure to show evaporation depositing dye in the “branches” of a biomimetic tree.

A recent article in Nature ( https://www.nature.com/articles/s41586-021-03603-2 ) explores creating lattice frameworks to transport liquids through micro-fluidic structures. Like plants, this allows for having fluids do things like cooling the structure, or transpiration-style evaporation. Supplemental video is available at https://www.youtube.com/watch?v=pdKn0UgcfXg

The scientists explored a number of ideas, including “selective flow”…

Michael E Johnson

Inventor

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