Walk into any supermarket, and you’ll see rows of beverage cans stacked high, shipped across countries, and dropped onto conveyor belts. They survive all of this while holding liquids under pressure, yet they feel almost impossibly light. Here is the engineering paradox: a standard aluminium (aluminum) can has a wall thickness of just 0.1 mm—about … Continue reading Why Aluminium Cans Are Only 0.1 mm Thick — Yet Strong Enough to Hold 90 PSI