So [Nikodem] recreated their basic design: strips of thin material wound into a tight spring that forms a tube that can extend and retract. The first prototypes were from paper, which worked but ...

General-purpose credit cards were first developed in the United States The plastic BankAmericard (now Visa) and American Express card became available to consumers in the late 1950s. Master Charge ...

Meanwhile, a roll of green PVC plastic winds its way towards a roller equipped with many circular cutters. They slice it into a four-inch-wide strip. Each of the narrow plastic strips then goes ...