Sabu disk

The artifact is made of schist (a term previously used in Egyptology for weakly metamorphic siltstone{{cite web|access-date=2018-04-06|date=2003-08-25|archive-url=https://web.archive.org/web/20090227135337/http://www.geocities.com/unforbidden_geology/Tomb_3111.html|archive-date=2009-02-27|publisher=www.bibliotecapleyades.net|title=The Tomb of Sabu and The Tri-lobed "Schist" Bowl|url=https://www.bibliotecapleyades.net/egipto/esp_egipto_mist_2c.htm}}), and is in the shape of a shallow bowl with a diameter of {{Convert|61|cm}} and a maximum height of {{Convert|10.6|cm|abbr=on}}. Its central hole has a diameter of about {{Convert|8|cm|abbr=on}}, which is fitted with a socket whose height corresponds approximately to the depth of the bowl. From the slightly raised outer edge, three wings or lobes are folded inwards towards the central hole, with the outer edge remaining in the form of narrow arches that connect the non-folded parts with each other. When viewed from above, it therefore resembles a steering wheel with three very wide spokes.{{Cite journal |last=Hughes |first=George R. |date=1937 |title=The Oriental Institute Archeological Report on the Near East. First Quarter, 1937: Egypt and Nubia |journal=American Journal of Semitic Languages and Literatures |volume=53 |issue=4 | at=pp. 257-262, preliminary excavation report}}{{rp|259}}

Sabu's grave was discovered on January 19, 1936, by the British archaeologist Walter Bryan Emery. It is a mastaba tomb that consists of seven chambers. In Room E, the central burial chamber, the disk was found in a central location right next to Sabu's skeleton, which was originally buried in a wooden coffin.Emery, Walter B. Great Tombs of the First Dynasty. Volume 1. Cairo Government Press, Cairo 1949, p. 98 The slate object was broken into several fragments and was later restored.Emery, Walter B. Great Tombs of the First Dynasty. Volume 1. Cairo Government Press, Cairo 1949, p. 99 It is currently on display at the Egyptian Museum in Cairo. A copy of the artifact is on display at the Orient Pavilion of Jungfrau Park, founded by Erich von Däniken.{{Cite book |last=Habeck |first=Reinhard |url=https://books.google.com/books?id=tjhrrgEACAAJ |title=Ungelöste Rätsel: Wunderwerke, die es nicht geben dürfte |date=2015 |publisher=Pichler Verlag |isbn=978-3-85431-709-8 |pages=37–40 |language=de |trans-title=Unsolved Mysteries: Miracles that shouldn't exist}}

Discoveries of large flat stone bowls from the First to Third Dynasties are generally not uncommon. During this period of Ancient Egypt, the production of stone objects generally peaked,Cyril Aldred. Egypt to the End of the Old Kingdom. Thames & Hudson, London 1965. p. 56. and several high-quality slate objects of similar origin were found in Saqqara.Zippert, Erwin. Saqqâra. In: Archiv für Orientforschung [Archive for Oriental Studies]. Volume 12, 1937–1939, p. 93. (in German). However, due to its design the disk is considered a unique piece in Egyptology.See also Ali El-Khouli's extensive catalog: Egyptian Stone Vessels: Predynastic Period to Dynasty III. 3 volumes, by Zabern, Mainz 1978. {{ISBN|3-8053-0318-1}}, in which there is no comparable piece.

The discoverer Emery tentatively interpreted the artifact as a vessel placed on a stand because of the central hole, but no remains of such were found. However, it should be taken into account that mastaba S3111 was not untouched when Emery discovered it, but like many other ancient Egyptian tombs had been looted by grave robbers centuries before. Since the production of a metal object shaped like the Sabu disk would be easy, but very complex if it were made from easily splintered rock, it has been assumed that the disk may have been an imitation of a metal object.Cyril Aldred: Egypt to the End of the Old Kingdom. Thames & Hudson, London 1965. p. 57.Emery, Walter B. Ägypten. Geschichte und Kultur der Frühzeit 3200–2800 v. Chr [Egypt: History and culture of the early period 3200–2800 BC]. Goldmann. Munich 1964. p. 180. (in German). Early reports of the discovery dubbed the find a "mysterious vessel" and speculated that it may have been a gigantic lamp."Ce vase énigmatique pourrait être une lampe gigantesque". [This enigmatic vase could be a gigantic lamp]. Report in La Bourse égyptienne. February 11, 1937. Quoted in: Chronique d’Égypte. Volume 12. Number 24. 1937. p. 163 (in French). In popular and unscientific publications, an English engineer named William Kay is quoted as having further developed this hypothesis. According to him, the bowl was used as a three-flame oil lamp during ritual activities and was placed on a holder for this purpose.[http://s8int.com/phile/page52.html The Mysterious Egyptian Tri-Lobed Disc] {{Webarchive|url=https://web.archive.org/web/20130618021614/http://s8int.com/phile/page52.html |date=2013-06-18 }}. The Ooparts Collection. Retrieved May 22, 2018. Another hypothesis states that the bowl could only have served a decorative purpose because of its fragility.

In Egyptology, apart from the brief reports mentioned, there was no extensive discussion of the disk and its function. Some ancient astronaut fringe theorists believe the object is an out-of-place artifact, i.e. an object that was found in a place where it "does not belong". According to this theory, the significance of the disk can be recognized, besides its unique form, by the fact that it was placed in the center of the burial chamber, and not Sabu's remains. Zecharia Sitchin believes it is a flywheel for flywheel storage.Sitchin, Zecharia. The Stairway to Heaven: The Second Book of the Earth Chronicles. Bear & Co. Santa Fe 1992. {{ISBN|0-06-137920-4}}.

At the Airbus research center, copies of the disk were made using a 3D printer and the physical properties of the disk were examined. The copies had aerodynamic properties, and could serve as flying disks. However, due to their rotational symmetry (or non-chirality), use as a propeller or turbine is impossible. It was also shown that it was possible to use the disk as an oil lamp.{{Cite web |date=2018-04-01 |title=Ungelöste Fälle der Archäologie (2/2): Brisante Funde |trans-title=Unsolved cases in archeology (2/2): Explosive finds |url=https://www.zdf.de/dokumentation/terra-x/ungeloeste-faelle-der-archaeologie-mit-harald-lesch-brisante-funde-100.html |access-date=2018-04-06 |website=ZDF |language=de}}

{{reflist}}

• {{cite book |last=Emery |first=Walter B. |title=Great Tombs of the First Dynasty (Excavations at Saqqara) |volume=1 |publisher=Cairo Government Press |location=Cairo |year=1949 | at=page 101, table 40, final excavation report}}
• {{cite book |last=El-Khouli |first=Ali |title=Egyptian Stone Vessels: Predynastic Period to Dynasty III |volume=1 |publisher=Zabern |location=Mainz |year=1978 |isbn=3-8053-0318-1}}
• {{cite book |last=El-Khouli |first=Ali |title=Egyptian Stone Vessels: Predynastic Period to Dynasty III |volume=2 |publisher=Zabern |location=Mainz |year=1978 |isbn=3-8053-0318-1 |at=page 730, No. 5586}}
• {{cite book |last=El-Khouli |first=Ali |title=Egyptian Stone Vessels: Predynastic Period to Dynasty III |volume=3 |publisher=Zabern |location=Mainz |year=1978 |isbn=3-8053-0318-1 |at=tables 135 (drawing) and 158 (photo)}}

• [https://www.weser-kurier.de/bremen/bremen-wirtschaft_artikel,-das-raetsel-der-sabuscheibe-_arid,1715236.html Das Rätsel der Sabu-Scheibe] ('The mystery of the Sabu disk'; subscription required)
• [http://www.bibliotecapleyades.net/egipto/esp_egipto_mist_2c.htm The Tomb of Sabu and The Tri-lobed "Schist" Bowl]

Category:Stone sculptures

Category:Egyptian Museum

Category:First Dynasty of Egypt

Category:Archaeological discoveries in Egypt

Category:Ancient Egyptian pottery

Category:1936 archaeological discoveries

Category:Saqqara

Category:3rd-millennium BC works