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.
Running along the inner edges of a tire are the beads. Beads are high-strength steel, coated in rubber, which gives tires strength while also helping to hold the tire to the wheel. The body of the tire is actually made up of fabric, not rubber. The body is built from layers of fabric (each layer is called a ply).The plies aren't your run-of-the-mill cotton fabric; they're usually a strong composite material.The plies are coated with rubber, not only to help them hold air inside, but also to help them bond to the other parts of the tire.he final part of the tire is the tread. The tread is on the outer edge of the tire. Like the sidewall, it's made of a mixture of natural and synthetic rubber.