515 00:44:27,360 --&amp;gt; 00:44:31,880 it's the brain-child of professor craig hogan, 516 00:44:31,880 --&amp;gt; 00:44:36,000 the director of the centre for particle astrophysics at fermilab, 517 00:44:36,000 --&amp;gt; 00:44:42,160 who became intrigued by an unexplained sound, recorded by scientists in germany.