Researchers have developed a multi-layered "sensing skin" to detect corrosive or substances and cracks that are invisible to the naked eye. The multifunctional sensing skin is made of two layers: one is sensitive to both chlorides and cracking, the other is sensitive to cracking only. Aku Seppänen et al., October 6, 2016, doi: 10.1177/1475921716670574 "First trials to use plastic powders for coatings were conducted in the 1940s." A team of South Korean researchers has found a cost-effective and environmentally friendly method of applying a superhydrophobic ...