when he solved a problem that had been set to him: determining whether goldsmiths had adulterated the metal in the crown of Hiero II, king of Syracuse. Another mathematician, Carl Friedrich Gauss, echoed Archimedes when in 1796 he wrote in his diary, "ΕΥΡΗΚΑ! The company went on to expand its horizons, eventually manufacturing such diverse items as heaters, air conditioners, a wooden lung, and school furniture. Precise means needed to measure this minute difference was not available at the time. [11] This result is now known as Gauss' Eureka theorem[12] and is a special case of what later became known as the Fermat polygonal number theorem. Archimedes' insight led to the solution of a problem posed by Hiero of Syracuse, on how to assess the purity of an irregular golden votive crown; he had given his goldsmith the pure gold to be used, and correctly suspected he had been cheated by the goldsmith removing gold and adding the same weight of silver.
The initial /h/ is dropped in modern Greek and in several other European languages, including Spanish, Dutch, and English, but preserved in others, such as Finnish, Danish, and German. As a result of the extensive use of the exclamation dating from 1849, there were nearly 40 locales so named by the 1880s in a nation that had none in the 1840s. In 1922 they introduced the Eureka Model 9, which undercut their main competitor Hoover by 50% in price, with the same horsepower motor and a front-mounted bag that customers preferred to Hoover's rear-mounted bag, offered with a 10-day home trial, becoming the Model T of the vacuum cleaner industry, selling 1 million units in three years. In 1945 looking to get into the booming postwar appliance industry, the company merged with Williams Oil-O-Matic, a Bloomington, Ill., manufacturer (founded 1918) of oil-based heaters and refrigerators for the home, and the name of the company was changed to Eureka-Williams Corporation.[3]. Eureka vacuums are sold online and by a variety of national retailers globally.

The city of Eureka, California, founded in 1850, uses the California State Seal as its official seal. when he solved a problem that had been set to him: determining whether goldsmiths had adulterated the metal in the crown of Hiero II, king of Syracuse.

[5] For the problem posed to Archimedes, though, there is a simple method which requires no precision equipment: balance the crown against pure gold on a scale in the air, and then submerge both the crown and the gold in water simultaneously. Eureka Vacuum Cleaner Company was founded in 1909 in Detroit, Mich. by Toronto, Canada-born real estate auctioneer Fred Wardell (1866-1952)[1] to sell vacuum cleaners for which he had acquired several patents. [2] At first only selling vacuum cleaners manufactured by others, in 1913 he and four partners purchased their first plant. Eureka Vacuum Cleaner Company was founded in 1909 in Detroit, Mich. by Toronto, Canada-born real estate auctioneer Fred Wardell (1866-1952) to sell vacuum cleaners for which he had acquired several patents. It is a transliteration of an exclamation attributed to Ancient Greek mathematician and inventor Archimedes. Equipment for weighing objects with a fair amount of precision already existed, and now that Archimedes could also measure volume, their ratio would give the object's density, an important indicator of purity (as gold is nearly twice as dense as silver and therefore has significantly greater weight for the same volume). The company offers a full line of vacuum cleaners, including uprights, cordless, canisters, sticks and handhelds.
c. 1600, from Greek heureka "I have found (it)," first person singular perfect active indicative of heuriskein "to find" (see heuristic). Eureka is a brand of Chinese company Midea Group that manufactures vacuums for all households. Greater volume of the crown means its density is less than that of the gold, and therefore the crown could not be pure gold.

eureka . If the volumes are the same, the scale remains in balance, meaning that their densities are the same and therefore the crown must be pure gold. [7], The expression is also the state motto of California, referring to the momentous discovery of gold near Sutter's Mill in 1848. Eureka!"

in the Bath, https://en.wikipedia.org/w/index.php?title=Eureka_(word)&oldid=977539345, Articles containing Ancient Greek (to 1453)-language text, Creative Commons Attribution-ShareAlike License, This page was last edited on 9 September 2020, at 12:47.


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