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The '''Large Hadron Collider''' (LHC) is a [[particle accelerator]], with a circumference of 27 km, located at the [[CERN]] facility which straddles the border of France and Switzerland.<ref name=cern>{{cite web|url=https://home.cern/science/accelerators/large-hadron-collider|title=The Large Hadron Collider|accessdate=2018-12-20}}</ref> Built over 15 years at a cost of $9 billion, it is the largest and most ambitious piece of machinery ever conceived and built by man.
[[File:CERN Aerial View.jpg|thumb|alt=Bird's eye view of The Large hadron collider.|right|205px|Bird's eye view of The Large hadron collider.]]
The '''Large Hadron Collider''' (LHC) is a [[particle accelerator]], with a circumference of 27 km, located at the [[CERN]] facility which straddles the border of [[France]] and [[Switzerland]].<ref name=cern>{{cite web|url=https://home.cern/science/accelerators/large-hadron-collider|title=The Large Hadron Collider|accessdate=2018-12-20}}</ref> Built over 15 years at a cost of $9 billion, it is the largest and most ambitious piece of machinery ever conceived and built by man.
==Design==
==Design==
[[File:Installing_the_ATLAS_Calorimeter.jpg|thumb|alt=The ATLAS detector.|right|205px|The ATLAS detector.]]
The LHC has four giant detectors (named ATLAS, CMS, LHCb and ALICE) designed to probe new dimensions, search for the [[Higgs Boson]] (the so-called "God Particle", which gives matter and other [[boson]]s mass) and hypothetically to investigate what the [[universe]] might have been like immediately after the [[Big Bang]] (assuming it actually happened).
The LHC has four giant detectors (named ATLAS, CMS, LHCb and ALICE) designed to probe new dimensions, search for the [[Higgs Boson]] (the so-called "God Particle", which gives matter and other [[boson]]s mass) and hypothetically to investigate what the [[universe]] might have been like immediately after the [[Big Bang]] (assuming it actually happened).
==Challenges==
==Challenges==
The LHC survived legal and political challenges. Legal challenges revolve around the possibility it could open a microscopic [[black hole]] that would swallow the Earth. However scientists have effectively ruled out this scenario, pointing out - among other things - that such particle collisions take place quite often naturally.<ref>Steven B. Giddings, Michelangelo M. Mangano: [http://arxiv.org/abs/0806.3381 "Astrophysical implications of hypothetical stable TeV-scale black holes"]</ref><ref>Benjamin Koch, Marcus Bleicher, Horst Stoecker: [http://arxiv.org/abs/0807.3349 "Exclusion of black hole disaster scenarios at the LHC"]</ref> The LHC seeks to prove or disprove other important concepts and theories, such as [[supersymmetry]], [[matter]]-[[antimatter]] asymmetry and strong gravity.<ref>{{cite web|url=https://atlas.cern/updates/atlas-blog/philosophising-physics|title=Philosophising physics|accessdate=2018-12-20}}</ref><ref>{{cite web|url=https://home.cern/science/physics/matter-antimatter-asymmetry-problem|title=The matter-antimatter asymmetry problem|accessdate=2018-12-20}}</ref>
The LHC survived legal and political challenges. Legal challenges revolve around the possibility it could open a microscopic [[black hole]] that would swallow the Earth. However scientists have effectively ruled out this scenario, pointing out - among other things - that such particle collisions take place quite often naturally.<ref>Steven B. Giddings, Michelangelo M. Mangano: [https://arxiv.org/abs/0806.3381 "Astrophysical implications of hypothetical stable TeV-scale black holes"]</ref><ref>Benjamin Koch, Marcus Bleicher, Horst Stoecker: [https://arxiv.org/abs/0807.3349 "Exclusion of black hole disaster scenarios at the LHC"]</ref> The LHC seeks to prove or disprove other important concepts and theories, such as [[supersymmetry]], [[matter]]-[[antimatter]] asymmetry and strong gravity.<ref>{{cite web|url=https://atlas.cern/updates/atlas-blog/philosophising-physics|title=Philosophising physics|accessdate=2018-12-20}}</ref><ref>{{cite web|url=https://home.cern/science/physics/matter-antimatter-asymmetry-problem|title=The matter-antimatter asymmetry problem|accessdate=2018-12-20}}</ref>
Ethical challenges have been raised as well, with many {{who}} considering the search for the so-called "God particle" to be a sign of human hubris. An analogy can be made to the Biblical [[tower of Babel]].
Ethical challenges have been raised as well, with many {{who}} considering the search for the so-called "God particle" to be a sign of human hubris. An analogy can be made to the Biblical [[tower of Babel]].