Corrugated Cardboard
why are cardboard boxes corrugated?
i know they're used to shipping packages, but why?
Builders and engineers have known for thousands of years that an arch with the proper...
Corrugated Cardboard

why are cardboard boxes corrugated?
i know they're used to shipping packages, but why?
Builders and engineers have known for thousands of years that an arch with the proper curve is the strongest way to span a given space. Manfacturers of paper products apply this same principle to paper when they secure cardboard arches (flutes) between flat cardboard pieces with an adhesive. This technique resists bending and pressure from all directions.
Click on the source link I posted below for illustrations of how corrugated cardboard is constructed.
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