Sticky yet slick material pulls water from foggy or humid air

 作者:门遇刮     |      日期:2019-03-14 06:20:00
Xianming Dai, Nan Sun, and Tak-Sing Wong By Leah Crane In rain-starved regions, fog catchers can provide much needed water for drinking or crops. A new material makes that process more efficient with a corrugated, lubricated surface that builds up larger droplets that slide off easily to be collected. Water-harvesting materials usually come with a trade-off: they either trap droplets well, or help them travel into a reservoir efficiently. It’s tricky to do both because the material must be sticky to grab droplets,