This picture shows a cross section of part of the LHC. Those two yellow lines sticking out are the actual tubes. Everything else is equipment to manage the part

This picture shows a cross section of part of the LHC. Those two yellow lines sticking out are the actual tubes. Everything else is equipment to manage the particles (detectors, containment, magnetic propulsion). And for a sense of scale, a human can comfortably stand in that tunnel next to it. Image: http://www.tut.fi/cs/groups/public_news/@l102/@news/@p/documents/kuva/x194225.jpg http://www.tut.fi/cs/groups/public_news/@l102/@news/@p/docum... From here: http://www.tut.fi/en/about-tut/news-and-events/tut-and-cern-collaborate-in-development-of-particle-accelerators-of-the-future-x194226c2 http://www.tut.fi/en/about-tut/news-and-events/tut-and-cern-...