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.
Steel, produced from mined iron ore, the base raw material, is perhaps the most widely used component in auto manufacturing. It accounts for roughly 80% of the weight of an average car. Steel is used to construct a car's chassis and body, including the roof, body and door panels, and the beams between doors.