Look for extensive use of ceramics and new woven polymer materials in the armored vehicle that will replace the US Army’s Humvee. The Joint Light Tactical Vehicle will come in three types that will haul cargo and perform reconnaissance missions. The target weight is 20,000 pounds, about half the weight of currently used armored vehicles. That’s only three to four times the weight of pickup trucks. Under consideration will be use of composite systems such as aramid-fiber reinforced materials (Kevlar), ultra-high molecular weight polyethylene (UHMWPE) composites, and S-2 glass armor systems, which are also used in the Boeing Dreamliner. Capacities of all three are being rapidly expanded in anticipation of higher demand for military and other types of applications. Manufacturers of all three materials are dramatically expanding capacity right now to meet soaring demand.
Plastic bags can become useful as either raw materials for plastics or feedstock for fuel. It's when they're not recycled that they become a major problem. That's what California's bag ban will prevent.
NASA's JPL and Caltech have achieved the mind-boggling feat of 3D printing multiple metals in a single end-part, grading from one alloy to another. They've also developed a method for combining metals with carbon fiber composites in end-production parts.
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