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. 