"Ahu" are stone platforms on which many moai sit. There are 313 known ahu and 125 of these carry moai. The biggest, Ahu Tongariki is 220 m (720 ft), and had the most (15) and tallest moai.
It is probably safe to say that all the changes of factual knowledge which have led to the relativity theory, resulting in a very great theoretical development, are completely trivial from any point of view except their relevance to the structure of a theoretical system.
I had a 2-week courtship with a fellow student in the fiction workshop in Iowa and a 5-minute wedding in a lawyer's office above the coffee shop where we'd been having lunch that day. And so I sent a cable to my father saying, 'By the time you get this, Daddy, I'll already be Mrs. Blaise!'
