Submarine ballooning: Difference between revisions
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'''Submarine ballooning''' is the use of a balloon underwater. | '''Submarine ballooning''' is the use of a balloon (or balloons) underwater, in the manner of a submarine. | ||
== Fiction cross-reference == | == Fiction cross-reference == | ||
Revision as of 12:37, 30 May 2016
Submarine ballooning is the use of a balloon (or balloons) underwater, in the manner of a submarine.