Eureka

Eureka is the greek word that Archimedes was reputed to have run down the street shouting, after he discovered that an object immersed in water (he was bathing at the dive) displaces the same volume of water as the volume immersed. It enabled him to determine if a gold crown was diluted with copper. It literally means "I have found it"

The pictures below are from the Eureka Medical Lab in Arnos Vale