boojum
...that the boojum phenomenon in superfluidity physics is named after an imaginary monster in a poem by Lewis Carroll?
...that the <b id="mwA4s"><a href="./Boojum_(superfluidity)" id="mwA4w" rel="mw:WikiLink" title="Boojum (superfluidity)">boojum</a></b> phenomenon in <a href="./Superfluidity" id="mwA40" rel="mw:WikiLink" title="Superfluidity">superfluidity</a> <a href="./Physics" id="mwA44" rel="mw:WikiLink" title="Physics">physics</a> is named after an imaginary monster in a <a href="./The_Hunting_of_the_Snark" id="mwA48" rel="mw:WikiLink" title="The Hunting of the Snark">poem</a> by <a href="./Lewis_Carroll" id="mwA5A" rel="mw:WikiLink" title="Lewis Carroll">Lewis Carroll</a>?