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, 05:48, July 16, 2011
''Not to be confused with [[Gideon's Trumpet]].''
'''Gabriel's horn''' is the [[surface]] obtained by revolving the [[graph]] of <math>y = 1/x</math> for <math>x \geq 1</math> about the <math>x</math>-axis. It has [[infinity|infinite]] [[area]], but encloses a [[finite]] [[volume]] of 3 <math>\mathrm{cubits}^3</math>. It will be blown by the [[gabriel | Archangel Gabriel]] to announce the [[eschatology|Day of Judgement]].
[[Category:Mathematics]]
[[Category:Theology]]