High-Efficiency Fog Collector: Water Unidirectional Transport on Heterogeneous Rough Conical Wires

High-Efficiency Fog Collector: Water Unidirectional Transport on Heterogeneous Rough Conical Wires. An artificial periodic roughness-gradient conical copper wire (PCCW) can be fabricated by inspiration from cactus spines and wet spider silks. PCCW can harvest fog on periodic points of the conical surface from air and transports the drops for a long distance without external force...