Ancient Roman concrete arches contained volcanic ash, which helped them self-heal when cracks formed by reacting with water. This made them incredibly durable, lasting for millennia.
The phrase "a sign of the times" originates from biblical texts, specifically in Matthew 16:3, where Jesus refers to interpreting "the signs of the times" as a way to understand unfolding events. It evolved to describe trends or occurrences that refl
The tallest bridge the world is the Millau Viaduct, a cable-stayed type bridge, located in Millau, France. The structural height of the Millau Viaduct is 1,104 feet (336.4 meters).
An "android" (andro - man; eide - looks like) is a robot built to look like a human, while a "cyborg" (cybernetic organism) is a living thing with mechanical parts
