Carrie Chapman Catt. Carrie Chapman Catt (January 9, 1859 â March 9, 1947) was an American women's suffrage leader who campaigned for the Nineteenth Amendment to the United States Constitution, which gave U.S. women the right to vote in 1920.
Aluminum is lighter than steel. Automakers use it to cut weight, and thereby improve fuel economy and performance, or to add features without making cars and trucks disastrously heavy. The 2004 Audi A8L, which went on sale last month, is the third generation with an aluminum body.
Piston in the engine is usually made up of steel but some other major parts of the airplane is made up of aluminum alloys. Jet engines are built up of aluminum, steel and titanium alloys. An engineer always looks up for the appropriate metal and alloy to be used in the aircraft according to its application.