‘Harvesting’ microparticles from a liquid jet

Depending on the location of the UV irradiation of the liquid jet, fibers, beaded fibers or microparticles are formed. Credit: University of Twente Microspheres, microlenses and microfibers can now be produced by irradiating a fluid jet with ultraviolet light. The result is that locally, a polymer of a desired shape is formed. This process, called […]

Plant evolves to stay hidden from harvesting humans — ScienceDaily

A plant used in traditional Chinese medicine has evolved to become less visible to humans, new research shows. Scientists found that Fritillaria delavayi plants, which live on rocky slopes of China’s Hengduan mountains, match their backgrounds most closely in areas where they are heavily harvested. This suggests humans are “driving” evolution of this species into […]