If you don’t know what to put in your child’s lunch box, look to the wide variety of lunch boxes out there for inspiration. Insulated bags and boxes often come with separate compartments to keep food ...

In 1938, a 27-year-old chemist named Roy Plunkett stumbled across a new type of chemical, one with a bond so strong it would end up sticking around long after he died—in fact, almost forever. Today, ...