Changes

A '''bubble''' is a thin film of liquid around a gas (e.g., a soap bubble) or a globular body of gas in a liquid (e.g., an air bubble in water).<ref>[http://www.thefreedictionary.com/bubble Definition of "bubble"]</ref>  As a [[metaphor]], a bubble can mean a fantastic or impracticable idea ("Sorry to burst your bubble, but ....") or an [[economic bubble]].

A '''bubble''' is a thin film of liquid around a gas (e.g., a soap bubble) or a globular body of gas in a liquid (e.g., an air bubble in water).<ref>[http://www.thefreedictionary.com/bubble Definition of "bubble"]</ref>  As a [[metaphor]], a bubble can mean a fantastic or impracticable idea ("Sorry to burst your bubble, but ...."), an [[economic bubble]], or a place or position that is protected from danger or unpleasant reality (similar to the non-literal meaning of [[echo chamber]]).

==References==

==References==

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[[Category:Figures of Speech]]

[[Category:Figures of Speech]]

[[Category:Physics]]

[[Category:Physics]]