https://www.explainxkcd.com/wiki/api.php?action=feedcontributions&feedformat=atom&user=Artefact2 explain xkcd - User contributions [en] 2026-04-16T12:19:51Z User contributions MediaWiki 1.30.0 https://www.explainxkcd.com/wiki/index.php?title=Talk:1714:_Volcano_Types&diff=124519 Talk:1714: Volcano Types 2016-08-01T13:22:11Z <p>Artefact2: No, that's stupid.</p> <hr /> <div></div> Artefact2 https://www.explainxkcd.com/wiki/index.php?title=Talk:1714:_Volcano_Types&diff=124518 Talk:1714: Volcano Types 2016-08-01T13:19:46Z <p>Artefact2: </p> <hr /> <div>&lt;!--Please sign your posts with ~~~~--&gt;<br /> Could the Somma volcano shape be a reference to an uppercase sigma (Σ), which means &quot;sum&quot; in mathematics ? [[User:Artefact2|Artefact2]] ([[User talk:Artefact2|talk]]) 13:19, 1 August 2016 (UTC)</div> Artefact2