"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.
Now the main areas of higher education that still enjoy considerable financial support from government are subjects like engineering and science and the research ringfence which is the basic minimum to protect Britain's scientific competitiveness.