{"paper":{"title":"Discovery of a big void in Khufu's Pyramid by observation of cosmic-ray muons","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.ins-det","authors_text":"Akira Nishio, Benoit Marini, Bernard Charl\\`es, Christopher Filosa, David Atti\\'e, Denis Calvet, Emmanuel Guerriero, Fumihiko Takasaki, Hany Helal, Hideyo Kodama, Hirofumi Fujii, Irakli Mandjavidze, Jean-Baptiste Mouret, Kohei Hayashi, Kotaro Satoh, Kunihiro Morishima, Makiko Sugiura, Marc Riallot, Masaki Moto, Mehdi Tayoubi, Mitsuaki Kuno, Mustapha Ezzy, Nicolas Serikoff, Nobuko Kitagawa, Patrick Magnier, Pierre Gable, S\\'ebastien Procureur, Shigeru Odaka, Simon Bouteille, Tamer Elnady, Vincent Steiger, Yasser Elshayeb, Yoshikatsu Date, Yuta Manabe","submitted_at":"2017-11-05T12:30:29Z","abstract_excerpt":"The Great Pyramid or Khufu's Pyramid was built on the Giza Plateau (Egypt) during the IVth dynasty by the pharaoh Khufu (Cheops), who reigned from 2509 to 2483 BC. Despite being one of the oldest and largest monuments on Earth, there is no consensus about how it was built. To better understand its internal structure, we imaged the pyramid using muons, which are by-products of cosmic rays that are only partially absorbed by stone. The resulting cosmic-ray muon radiography allows us to visualize the known and potentially unknown voids in the pyramid in a non-invasive way. Here we report the disc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.01576","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}