An engineer scoops a handful of tiny pellets out of a stainless-steel canister at a manufacturing plant in the Netherlands and rolls them around in his hand.
From the wings and fuselage to the seats and overhead bins, petrochemicals have been increasingly relied upon to make passenger aircraft lighter and stronger, cutting fuel use and costs and making air travel more sustainable at a time when more people are flying than ever before.
Mowing lawns is a summertime rite of passage in America, providing young people with experience pitching their business to neighbors, keeping a work schedule, and making and managing money—from purchasing the gasoline that fuels the operation, to budgeting for the oils and lubricants that keep a mower’s engine and blades running smoothly.