... gas, such as helium, hydrogen, nitrous oxide, oxygen, or air. Modern balloons can be made from materials such as rubber, latex, polychloroprene ... a nylon fabric, while some early balloons were made of dried animal bladders. Some balloons are used for decorative purposes, while ... goals: a hundred years the name Enterprise, the industry fresh air.3,Staff objectives: Choi-chi, with a minor, win-win ...