#4: Those Circular Indents on Milk Jugs
You probably never wondered about those circular dimples on your milk jug, but they’re not there for aesthetic reasons only. They play a crucial role in keeping your milk safe. The jugs, made from semi-flexible plastic, could easily break or crack from a fall. These indents allow the jug to absorb the impact by flexing, substantially lowering the chances of a mess. They also help manage pressure changes, ensuring the jug doesn’t burst.
Next time you grab a gallon of milk, you might appreciate it more if you know its engineering. Those circular indents resemble how a water balloon can drop without popping, thanks to its ability to squish and stretch. This clever design feature silently protects your milk from accidental drops, making it as resilient as it is functional.