#2020gofm

Two well-timed and properly aligned droplets combine to create these umbrella-like fluid sculptures. The initial drop creates a jet that shoots upward. When the second drop hits that jet, it forms an expanding sheet of liquid like a miniature parasol. (Image and research credit: A. Kiyama et al.) Read the full article

What does the air flow from a trained opera singer look like? That's the question behind this study, which combines music and fluid dynamics. (Image and video credit: MET Orchestra; research credit: P. Bourrianne et al.; via Improbable Research; submitted by Kam-Yung Soh) Read the full article

As a bubble sitting on a pool collapses, wrinkles form around its edges. Visually, the result is quite similar to the wrinkles one gets on an elastic sheet. (Image and research credit: O. McRae et al.) Read the full article

There are many materials that don't behave exactly as a fluid or a solid, instead displaying characteristics of both. In this video, we see drops of hair gel falling into water. The gel is viscoplastic - showing some of the viscous behavior of a fluid and some of the plastic behavior (the inability to change back to its initial shape) of a solid. (Image and video credit: M. Jalaal et al.) Read the full article

Usually, microbial colonies are grown on a solid substrate, but what happens when they grow on a liquid surface? That's the question explored in this Gallery of Fluid Motion video featuring colonies of brewer's yeast on various liquid substrates. (Image, video, and research credit: S. Atis et al.) Read the full article