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Levi Strauss & Co. (/ ˈ l iː v aɪ ˈ s t r aʊ s / LEE-vy STROWSS) is an American clothing company known worldwide for its Levi's (/ ˈ l iː v aɪ z / LEE-vyze) brand of denim jeans.It was founded in May 1853 [9] when German-Jewish immigrant Levi Strauss moved from Buttenheim, Bavaria, to San Francisco, California, to open a West Coast branch of his brothers' New York dry goods business.
Levi Strauss (/ ˈ l iː v aɪ ˈ s t r aʊ s / LEE-vy STROWSS; born Löb Strauß, German: [løːp ˈʃtʁaʊs]; February 26, 1829 – September 26, 1902) was a German-born American businessman who founded the first company to manufacture blue jeans. His firm of Levi Strauss & Co. (Levi's) began in 1853 in San Francisco, California. [1] [2]
1912: The first commercial slot cars or more accurately model electric racing cars operating under constant power were made by Lionel (USA) and appeared in their catalogues in 1912. 1912: The first use of articulated trams by Boston Elevated Railway. 1913: The Bergius process is developed by Friedrich Bergius.
Electric power is the rate at which electric energy is transferred by an electric circuit. The SI unit of power is the watt, one joule per second. Electric power, like mechanical power, is the rate of doing work, measured in watts, and represented by the letter P. The term wattage is used colloquially to mean "electric power in watts."
The three also invented the modern power distribution system: Instead of former series connection they connect transformers that supply the appliances in parallel to the main line. The first demonstrative long-distance (34 km, 21 mi) AC line was built for the 1884 International Exhibition of Turin, Italy .
The Babcock test was the first inexpensive and practical test which were used to determine the fat content of milk. Invented by Stephen Moulton Babcock in 1890, the test was developed to prevent dishonest farmers who could, until the 1890s, water down their milk or remove some cream before selling it to the factories because milk was paid by ...
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Its lesser size and power compared with electron tubes brings (from 1955) portable radio receivers starting its march through all areas of electronics. The Hungarian-American physicist Peter Carl Goldmark (1906–1977) invents the vinyl record (first published 1952), much less noisy than their predecessors shellac.