Twain Harte, California Twain Harte, California Twain Harte is a census-designated place (CDP) in Tuolumne County, California, United States. The population was 2,226 at the 2010 census, down from 2,586 at the 2000 census. Its name is derived from the last names of two famous authors who lived in California, Mark Twain and Bret Harte. Twain Harte is located at (38.040390, -120.233671). Twain Harte is situated in Tuolumne County along Highway 108 at an elevation of . The USPS zip code for Twain Harte is 95383. According to the United States Census Bureau, the CDP has a total area of , of which,
Eureka (word) Fermat polygonal number theorem. Eureka (word) Eureka () is an interjection used to celebrate a discovery or invention. It is a transliteration of an exclamation attributed to Ancient Greek mathematician and inventor Archimedes. "Eureka" comes from the Ancient Greek word "heúrēka", meaning "I found (it)", which is the first person singular perfect indicative active of the verb "heuriskō" "I find". It is closely related to heuristic, which refers to experience-based techniques for problem solving, learning, and discovery. The accent of the English word is on the second syllable, following Latin rules of accent, which require that a penult (next-to-last syllable)