- Balloons
by Victor Thomas. A flexible bag filled with helium, hydrogen, nitrous oxide or air is called a balloon. Dried animal bladders were used as early balloons. Rubber, latex, chloroprene or nylon fabrics are used to make modern balloons. Though balloons are decorative in nature it is used for meteorology, medical treatment, military defence and even transportation.
History
• Michael Faraday invented the r... articles, news
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