Archaeologists have traced the earliest lock-and-key mechanism back to ancient Mesopotamia around 4,000 BCE. Made from wood and operated with a large pin tumbler system, this innovation protected ...
When a polar blast hits and your key suddenly refuses to turn, the real danger is not the ice in the cylinder but the snap of ...
The Nature Index 2024 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...