Free Republic

Researchers from the University of Cambridge may have a viable solution to the single-use plastic dilemma: spider silk. Or, more accurately, a plant-based synthetic polymer that mimics the composition of spider silk, but doesn't actually come from the eight-legged arthropods. The researchers modeled their polymer after spider silk due to its durability and strength—if you could scale up a spiderweb to human size, it would be capable of trapping an airplane. In fact, spider silk is five times stronger than steel, and half as strong as Kevlar; it's considered one of the strongest naturally occurring materials on Earth. Incredibly, the...

Simple processes can make wood tough, impact-resistant—or even transparent Some varieties of wood, such as oak and maple, are renowned for their strength. But scientists say a simple and inexpensive new process can transform any type of wood into a material stronger than steel, and even some high-tech titanium alloys. Besides taking a star turn in buildings and vehicles, the substance could even be used to make bullet-resistant armor plates. Wood is abundant and relatively low-cost—it literally grows on trees. And although it has been used for millennia to build everything from furniture to homes and larger structures, untreated wood...