Calendar wiki:
endar is a system for naming periods of time, typically days. These names are known as calendar dates. The dates may be based on the perceived motion of astronomical objects. A calendar is also a physical device (often paper) that illustrates the system (for example, a desktop calendar) â this is the most common usage of the word.
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Balloon wiki:
>For the impedance converter, see the article on balun. A balloon is a flexible bag normally filled with air or gas. Some balloons are purely decorative, others are used for specific purposes. Early balloons were made of dried animal bladders.
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