On fungi and fabrics

A recent article in Physical Review Letters reports on “self-propelled droplet removal” from fibers — the authors designed hydrophobic fibers with the property that when water droplets grow and coalesce on them, the energy released by the coalescence flings the drops off the fibers. The underlying phenomenon is one we’ve all seen: two water droplets, … Continue reading On fungi and fabrics

Water magic

My older son’s school (Willagillespie Elementary) had its annual “Math and Science Night” tonight, which is consistently great. This year, I was asked if I would do something for it, and I decided to present some demonstrations and activities about surface tension. Here’s something that I didn’t show, but that I did for my Physics … Continue reading Water magic