71 00:06:01,720 --&amp;gt; 00:06:05,680 deep underground in a four-mile vacuum pipe, 72 00:06:05,680 --&amp;gt; 00:06:08,160 encased by superconducting magnets, 73 00:06:08,160 --&amp;gt; 00:06:12,000 they smash together two subatomic particles 74 00:06:12,000 --&amp;gt; 00:06:15,440 at close to the speed of light.