Eureka (word) "Eureka! Eureka!" after he had stepped into a bath and noticed that the water level rose, whereupon he suddenly understood that the volume of water displaced must be equal to the volume of the part of his body he had submerged. (This relation is "not" what is known as Archimedes' principle—that deals with the "upthrust" experienced by a body immersed in a fluid.) He then realized that the volume of irregular objects could be measured with precision, a previously intractable problem. He is said to have been so eager to share his discovery that he leapt out of his bathtub
Cry of Pugad Lawin consul at that time: ""... the rebels were heard to cry out to their countrymen to rise in arms and fight for independence. This was the first time that word, independence, had been uttered in the Philippines, as a rallying cry. It is a milestone, Your Excellency, on the road to freedom."" The Cry is commemorated as National Heroes' Day, a public holiday in the Philippines. The first annual commemoration of the Cry occurred in Balintawak in 1908 after the American colonial government repealed the Sedition Law. In 1911 a monument to the Cry (a lone Katipunero popularly identified with