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John Hugh Seiradakis

August 28, 2023

John Seiradakis (Greek: Ιωάννης-Χιου Σειραδάκης; 5 March 1948 – 3 May 2020) was a Greek astronomer and professor emeritus at the Department of Physics of the Aristotle University of Thessaloniki. He is best known for his contributions in the understanding of radio pulsars, the Galactic Center and archaeoastronomy. Since the early 2000s he was heavily involved[1][2] in the decoding of the Antikythera mechanism. He was a founding member of the Hellenic Astronomical Society, the European Astronomical Society and the International Olympiad on Astronomy and Astrophysics (IOAA).

John Hugh Seiradakis
Profile photo of John H. Seiradakis (2014)
Born(1948-03-05)5 March 1948
Chania, Greece
Died3 May 2020(2020-05-03) (aged 72)
Thessaloniki, Greece
NationalityGreek
Known for
ChildrenElena, Michael
Awards
Scientific career
FieldsPhysics, Astronomy
Institutions
ThesisA low latitude pulsar survey at 408 MHz
Doctoral advisorJohn G. Davies
InfluencedVicky Kalogera
Michael Kramer (astronomer)

Personal life Edit

John Seiradakis was born in Chania, Crete, Greece, on 5 March 1948 to Mercy Burdett Money-Coutts Seiradaki and Michael Seiradakis. His mother was a British archaeologist. He had a younger sister, Sophia Hester Seiradaki. He completed his primary education, as well as two years of high school in Chania. In 1966 his family moved to Athens so he finished the last four grades of high school in Vyronas. He was admitted to the National and Kapodistrian University of Athens, from which he received his Degree in Physics in 1971 (Class of 1970). He continued his post-graduate studies at the Victoria University of Manchester, from which he received his M.Sc. (1973) and his Ph.D. (1975) in Radio Astronomy.

He had two children, Elena,[3] currently an associate professor of biochemistry at Oxford University, and Michael, currently a medical doctor working in Germany.

He died on 3 May 2020 in his house in Thessaloniki, due to complications from cancer.[4][5][6] An obituary appeared in Nature Astronomy.[7] On June 7, 2021, the Governing Council of the Hellenic Astronomical Society decided[8] to honour his memory by naming one of the plenary lectures of the biannual conference of the Society to "John H. Seiradakis Plenary Lecture".

Career Edit

John Seiradakis conducted his M.Sc. and Ph.D. projects under the supervision of Dr. John G. Davies.[9] His M.Sc. thesis was entitled "High sensitivity pulsar search."[10] His MSc thesis examiners were Dr. Bryan Anderson and Prof. Antony Hewish. For his Ph.D. project, entitled "Low latitude pulsar survey at 408 MHz",[11] he designed and conducted a sensitive survey for pulsars in the galactic plane.[12] This survey discovered 18 new radio pulsars, more than 20% of the then known population. His PhD viva examiners were Dr. Robin G. Conway and Prof. Bernard E.J. Pagel. After receiving his Ph.D., Seiradakis moved to Germany as a postdoctoral fellow at the Max Planck Institute for Radio Astronomy (MPIfR), working under Prof. Richard Wielebinski.[13] At the MPIfR, he made contributions to the understanding of pulsar emission[14] and helped in the development of the first-generation pulsar instrumentation for the 100-m Effelsberg Radio telescope. He returned to the MPIfR several times during his career; in 1979 as a postdoctoral researcher, from 1982 to 1984 as an Alexander von Humboldt fellow[15] and in 1991 as a visiting researcher on sabbatical leave from the University of Thessaloniki.[16]

In 1978 he became a researcher at the University of Hamburg. Together with Dr. W. Huchtmeier and others, he performed a comprehensive survey of the neutral hydrogen distribution in nearby galaxies[17][18][19] using the 100-m radio telescope at Effelsberg.

From 1982 to 1984 he worked as a researcher at the University of California, San Diego, where he continued his research on pulsar emission and interstellar scintillation.

In 1984, together with collaborators A. N. Lasenby, F. Yusef-Zadeh, R. Wielebinski and U. Klein, Seiradakis performed some of the first polarimetric observations of Sag A* at 10 GHz. This study revealed an extended polarised radio source with jet-like lobes originating from the Galactic Center.[20]

In 1986 he joined the Department of Physics of the Aristotle University of Thessaloniki and in 1996 was promoted to Professor. As a faculty member, he contributed in numerous fields, including neutron stars (pulsars), neutral hydrogen modelling in nearby galaxies, the Galactic Center, Flare Stars, Lunar Transient Phenomena and Archaeoastronomy. He published more than 74 scientific papers in refereed journals, and more than 80 papers in conference proceedings and special volumes, as well as three University-level textbooks.[21] He was a founding member of the Hellenic Astronomical Society (Hel.A.S.) where he served as Secretary (1994-1998)[22] and as President (1998-2002).[22] He served as Member (1986-1990) and as Chairman (2001-2005) of the Greek National Committee for Astronomy.

Antikythera mechanism Edit

The Antikythera mechanism is a hand-powered analogue computer discovered in 1900. The mechanism had been studied extensively for over a century. However, in the early 2000s, a new effort to analyse it using more advanced imaging techniques commenced, the so-called "The Antikythera Mechanism Research Project"[23] (AMRP). Prof. Seiradakis led the Greek involvement in this effort, along with Prof. Xenophon Moussas and Yannis Bitsakis. In 2005 the AMRP was granted permission to study the mechanism using novel tomographic and imaging techniques. This new study resulted in breakthrough discoveries regarding the design, function and origin of the mechanism. The project's findings have been presented in a series of scientific papers[2][24][25] and are summarised in a review article in Nature entitled, "Our current knowledge of the Antikythera Mechanism"[1] by J.H. Seiradakis and M.G. Edmunds. They have also inspired a large number of popular science articles[26][27][28][29][30] and documentaries.[31] Prof. Seiradakis gave numerous lectures[32][33] and presentations presenting the new results all over the world, including Chicago[34][35] (USA), Bonn[36] (Germany), CERN[37](Switzerland), etc.[16]

Education and outreach Edit

 
Seiradakis and the greek delegation during the 2011 5th IOAA in Krákow, Poland

Through his teaching and outreach activities, Seiradakis played a central role in the development of astronomy in Greece during the entire period of the Third Hellenic Republic. Dozens of his students have continued their studies at the postgraduate level in astrophysics and went on to assume faculty research positions, both in Greece and abroad.[16][38]

With the initiative of Prof. Seiradakis, the 2006 General Assembly of the International Astronomical Union[39] established the International Olympiad on Astronomy and Astrophysics, an international competition for high-school students, which is now one of the International Science Olympiads. Seiradakis represented Greece in the IOAA board until his death in 2020. Together with Prof. Loukas Zachilas,[40] he also led the Greek team, from 2007 until 2017.

Selected publications Edit

  • "Pulsar Associated with the Supernova Remnant IC 443" by Davies J. G., Lyne A. G. and Seiradakis J. H., Nature, Volume 240, Issue 5378, pp. 229–230 (1972)[41]
  • "Direct observation of pulsar microstructure" by Ferguson D. C., Graham D. A., Jones B. B., Seiradakis, J. J. and Wielebinski, R., Nature, Volume 260, Issue 5546, pp. 25–27 (1976)[14]
  • "A new symmetrical polarization structure near the galactic centre" by Seiradakis, J. J. Lasenby, A. N., Yusef-Zadeh, F., Wielebinski R. J. and Klein, U., Nature, Volume 317, Issue 6039, pp. 697–699 (1985)[20]
  • "Decoding the ancient Greek astronomical calculator known as the Antikythera Mechanism" by Freeth, T., Bitsakis, Y., Moussas, X., Seiradakis, J. H. et al., Nature, Volume 444, Issue 7119, pp. 587–591 (2006)[42]
  • "Our current knowledge of the Antikythera Mechanism" by J. H. Seiradakis and M. G. Edmunds, Nature Astronomy, Volume 2, p. 35-42 (2018)[43]

References Edit

  1. ^ a b Seiradakis, J. H.; Edmunds, M. G. (January 2018). "Our current knowledge of the Antikythera Mechanism". Nature Astronomy. 2 (1): 35–42. Bibcode:2018NatAs...2...35S. doi:10.1038/s41550-017-0347-2. ISSN 2397-3366. S2CID 187601677.
  2. ^ a b Freeth, T.; Bitsakis, Y.; Moussas, X.; Seiradakis, J. H.; Tselikas, A.; Mangou, H.; Zafeiropoulou, M.; Hadland, R.; Bate, D.; Ramsey, A.; Allen, M. (November 2006). "Decoding the ancient Greek astronomical calculator known as the Antikythera Mechanism". Nature. 444 (7119): 587–591. Bibcode:2006Natur.444..587F. doi:10.1038/nature05357. ISSN 1476-4687. PMID 17136087. S2CID 4424998.
  3. ^ "Associate Prof Elena Seiradake". www.bioch.ox.ac.uk. Retrieved 2020-05-03.
  4. ^ Newsroom (2020-05-03). "Γιάννης Σειραδάκης: Πέθανε ο σπουδαίος αστροφυσικός". CNN.gr (in Greek). Retrieved 2020-05-03.
  5. ^ "Έφυγε από τη ζωή ο καθηγητής Αστροφυσικής του ΑΠΘ Γιάννης Σειραδάκης | Kathimerini". www.kathimerini.gr. Retrieved 2020-05-03.
  6. ^ "Πέθανε ο διακεκριμένος καθηγητής Αστροφυσικής Γιάννης Σειραδάκης". in.gr. 3 May 2020. Retrieved 2020-05-03.
  7. ^ Kalogera, Vassiliki; Kramer, Michael (2020-06-25). "John Hugh Seiradakis". Nature Astronomy. 4 (7): 639–640. Bibcode:2020NatAs...4..639K. doi:10.1038/s41550-020-1145-9. ISSN 2397-3366.
  8. ^ "Minutes of the 2021-06-07, GC meeting of HelAS" (PDF).{{cite web}}: CS1 maint: url-status (link)
  9. ^ "Astronomy Tree - John Hugh Seiradakis". academictree.org. Retrieved 2020-05-04.
  10. ^ "Univ. of Manchester MSc Thesis, "High sensitivity pulsar search.", 1973".{{cite web}}: CS1 maint: url-status (link)
  11. ^ "Univ. of Manchester PhD Thesis, "Low latitude pulsar survey at 408 MHz.", 1975".{{cite web}}: CS1 maint: url-status (link)
  12. ^ "Astronomy Tree - John Hugh Seiradakis". academictree.org. Retrieved 2020-05-03.
  13. ^ "Prof. Dr. Richard Wielebinski | Max Planck Institute for Radio Astronomy". www.mpifr-bonn.mpg.de. Retrieved 2020-05-03.
  14. ^ a b FERGUSON, DALE C.; GRAHAM, DAVID A.; JONES, BEVAN B.; SEIRADAKIS, JOHN H.; WIELEBINSKI, RICHARD (1976). "Direct observation of pulsar microstructure". Nature. Springer Science and Business Media LLC. 260 (5546): 25–27. Bibcode:1976Natur.260...25F. doi:10.1038/260025a0. ISSN 0028-0836. S2CID 4261567.
  15. ^ "Humboldt Foundation". www.humboldt-foundation.de. Retrieved 2020-05-03.[permanent dead link][full citation needed]
  16. ^ a b c "Personal Website of John Seiradakis". www.astro.auth.gr. Retrieved 2020-05-03.[full citation needed]
  17. ^ Huchtmeier, W. K.; Seiradakis, J. H.; Materne, J. (1980). "1980A&A....91..341H Page 341". Astronomy and Astrophysics. 91: 341. Bibcode:1980A&A....91..341H. Retrieved 2020-05-03.[full citation needed]
  18. ^ Huchtmeier, W. K.; Seiradakis, J. H.; Materne, J. (1981). "1981A&A...102..134H Page 134". Astronomy and Astrophysics. 102: 134. Bibcode:1981A&A...102..134H. Retrieved 2020-05-03.[full citation needed]
  19. ^ Huchtmeier, W. K.; Seiradakis, J. H. (1985). "1985A&A...143..216H Page 216". Astronomy and Astrophysics. 143: 216. Bibcode:1985A&A...143..216H. Retrieved 2020-05-03.[full citation needed]
  20. ^ a b Seiradakis, J. H.; Lasenby, A. N.; Yusef-Zadeh, F.; Wielebinski, R.; Klein, U. (1985). "A new symmetrical polarization structure near the galactic centre". Nature. Springer Science and Business Media LLC. 317 (6039): 697–699. Bibcode:1985Natur.317..697S. doi:10.1038/317697a0. ISSN 0028-0836. S2CID 4228841.
  21. ^ "Publications of J.H. Seiradakis - NASA/ADS".{{cite web}}: CS1 maint: url-status (link)
  22. ^ a b "Hel.A.S - Past Councils". helas.gr. Retrieved 2020-05-04.
  23. ^ . www.antikythera-mechanism.gr. Archived from the original on 2012-10-05. Retrieved 2020-05-03.
  24. ^ Anastasiou, M.; Seiradakis, J. H.; Carman, C. C.; Efstathiou, K. (November 2014). "The Antikythera Mechanism: The Construction of the Metonic Pointer and the Back Plate Spirals". Journal for the History of Astronomy. 45 (4): 418–441. Bibcode:2014JHA....45..418A. doi:10.1177/0021828614537185. hdl:11336/33797. ISSN 0021-8286. S2CID 123797880.
  25. ^ Anastasiou, Magdalini; Seiradakis, John H.; Evans, James; Drougou, Stella; Efstathiou, Kyriakos (May 2013). "The Astronomical Events of the Parapegma of the Antikythera Mechanism". Journal for the History of Astronomy. 44 (2): 173–A10. Bibcode:2013JHA....44..173A. doi:10.1177/002182861304400204. ISSN 0021-8286. S2CID 117172438.
  26. ^ * "Ancient Moon 'computer' revisited". BBC News. 2006-11-29. Retrieved 2020-05-03.
  27. ^ Seabrook, John (2007-05-14). "Fragmentary Knowledge". The New Yorker. Retrieved 2020-05-03.
  28. ^ "Antikythera Mechanism - Athens - February 10 - May 28". ekathimerini.com. 2017-02-11. Retrieved 2020-05-03.
  29. ^ Resnick, Brian (2017-05-17). "The Antikythera mechanism is a 2,000-year-old computer". Vox. Retrieved 2020-05-03.
  30. ^ Keats, Jonathon (2019-07-30). "What Is The Ultimate Machined Object? A New Exhibit Of Ingenious Devices Shows How Innovation Works". Forbes. Retrieved 2020-05-03.
  31. ^ "The Two-Thousand-Year-Old Computer". BBC. 2012-05-10. Retrieved 2020-05-03.
  32. ^ "Antikythera Mechanism | Athens | February 10 - May 28 | Kathimerini". www.ekathimerini.com. Retrieved 2020-05-03.
  33. ^ "Understanding An Ancient Greek Computer". www.cbsnews.com. Retrieved 2020-05-03.
  34. ^ "Center for Interdisciplinary Exploration and Research in Astrophysics". legacy.ciera.northwestern.edu. Retrieved 2020-05-03.
  35. ^ "The World's Oldest Computer: The Antikythera Mechanism". www.nationalhellenicmuseum.org. Retrieved 2020-05-03.
  36. ^ "idw - Image for: The Antikythera Mechanism: Decoding an astonishing 2nd century BCE astronomical computer". idw-online.de. Retrieved 2020-05-03.
  37. ^ CERN. Geneva; Seiradakis, John, eds. (2018). The Antikythera Mechanism: Decoding an astonishing 2000 years old astronomical computer. Academic Training Lecture Regular Programme.
  38. ^ "Welcome". Home | Max Planck Institut für Radioastronomie. 2016-08-01. Retrieved 2020-05-03.
  39. ^ "International Astronomical Union". IAU. 2006-08-14. Retrieved 2020-05-05.
  40. ^ "Dr. Loukas Zachilas". www.econ.uth.gr. Retrieved 2020-05-11.
  41. ^ DAVIES, J. G.; LYNE, A. G.; SEIRADAKIS, J. H. (1972). "Pulsar Associated with the Supernova Remnant IC 443". Nature. Springer Science and Business Media LLC. 240 (5378): 229–230. Bibcode:1972Natur.240..229D. doi:10.1038/240229a0. ISSN 0028-0836. S2CID 4215039.
  42. ^ Freeth, T.; Bitsakis, Y.; Moussas, X.; Seiradakis, J. H.; Tselikas, A.; Mangou, H.; Zafeiropoulou, M.; Hadland, R.; Bate, D.; Ramsey, A.; Allen, M.; Crawley, A.; Hockley, P.; Malzbender, T.; Gelb, D.; Ambrisco, W.; Edmunds, M. G. (2006). "Decoding the ancient Greek astronomical calculator known as the Antikythera Mechanism". Nature. Springer Science and Business Media LLC. 444 (7119): 587–591. Bibcode:2006Natur.444..587F. doi:10.1038/nature05357. ISSN 0028-0836. PMID 17136087. S2CID 4424998.
  43. ^ Seiradakis, J. H.; Edmunds, M. G. (2018). "Our current knowledge of the Antikythera Mechanism". Nature Astronomy. Springer Science and Business Media LLC. 2 (1): 35–42. Bibcode:2018NatAs...2...35S. doi:10.1038/s41550-017-0347-2. ISSN 2397-3366. S2CID 187601677.

August 28, 2023
john, hugh, seiradakis, john, seiradakis, greek, Ιωάννης, Χιου, Σειραδάκης, march, 1948, 2020, greek, astronomer, professor, emeritus, department, physics, aristotle, university, thessaloniki, best, known, contributions, understanding, radio, pulsars, galactic. John Seiradakis Greek Iwannhs Xioy Seiradakhs 5 March 1948 3 May 2020 was a Greek astronomer and professor emeritus at the Department of Physics of the Aristotle University of Thessaloniki He is best known for his contributions in the understanding of radio pulsars the Galactic Center and archaeoastronomy Since the early 2000s he was heavily involved 1 2 in the decoding of the Antikythera mechanism He was a founding member of the Hellenic Astronomical Society the European Astronomical Society and the International Olympiad on Astronomy and Astrophysics IOAA John Hugh SeiradakisProfile photo of John H Seiradakis 2014 Born 1948 03 05 5 March 1948Chania GreeceDied3 May 2020 2020 05 03 aged 72 Thessaloniki GreeceNationalityGreekKnown forPulsars Galactic Center Archaeoastronomy Antikythera Mechanism Science outreachChildrenElena MichaelAwardsAlexander von Humboldt Fellowship 1984 1985 Descartes Prize 2005 Scientific careerFieldsPhysics AstronomyInstitutionsUniversity of Thessaloniki Max Planck Institute for Radio Astronomy University of Hamburg University of California Victoria University of ManchesterThesisA low latitude pulsar survey at 408 MHzDoctoral advisorJohn G DaviesInfluencedVicky Kalogera Michael Kramer astronomer Contents 1 Personal life 2 Career 2 1 Antikythera mechanism 2 2 Education and outreach 3 Selected publications 4 ReferencesPersonal life EditJohn Seiradakis was born in Chania Crete Greece on 5 March 1948 to Mercy Burdett Money Coutts Seiradaki and Michael Seiradakis His mother was a British archaeologist He had a younger sister Sophia Hester Seiradaki He completed his primary education as well as two years of high school in Chania In 1966 his family moved to Athens so he finished the last four grades of high school in Vyronas He was admitted to the National and Kapodistrian University of Athens from which he received his Degree in Physics in 1971 Class of 1970 He continued his post graduate studies at the Victoria University of Manchester from which he received his M Sc 1973 and his Ph D 1975 in Radio Astronomy He had two children Elena 3 currently an associate professor of biochemistry at Oxford University and Michael currently a medical doctor working in Germany He died on 3 May 2020 in his house in Thessaloniki due to complications from cancer 4 5 6 An obituary appeared in Nature Astronomy 7 On June 7 2021 the Governing Council of the Hellenic Astronomical Society decided 8 to honour his memory by naming one of the plenary lectures of the biannual conference of the Society to John H Seiradakis Plenary Lecture Career EditJohn Seiradakis conducted his M Sc and Ph D projects under the supervision of Dr John G Davies 9 His M Sc thesis was entitled High sensitivity pulsar search 10 His MSc thesis examiners were Dr Bryan Anderson and Prof Antony Hewish For his Ph D project entitled Low latitude pulsar survey at 408 MHz 11 he designed and conducted a sensitive survey for pulsars in the galactic plane 12 This survey discovered 18 new radio pulsars more than 20 of the then known population His PhD viva examiners were Dr Robin G Conway and Prof Bernard E J Pagel After receiving his Ph D Seiradakis moved to Germany as a postdoctoral fellow at the Max Planck Institute for Radio Astronomy MPIfR working under Prof Richard Wielebinski 13 At the MPIfR he made contributions to the understanding of pulsar emission 14 and helped in the development of the first generation pulsar instrumentation for the 100 m Effelsberg Radio telescope He returned to the MPIfR several times during his career in 1979 as a postdoctoral researcher from 1982 to 1984 as an Alexander von Humboldt fellow 15 and in 1991 as a visiting researcher on sabbatical leave from the University of Thessaloniki 16 In 1978 he became a researcher at the University of Hamburg Together with Dr W Huchtmeier and others he performed a comprehensive survey of the neutral hydrogen distribution in nearby galaxies 17 18 19 using the 100 m radio telescope at Effelsberg From 1982 to 1984 he worked as a researcher at the University of California San Diego where he continued his research on pulsar emission and interstellar scintillation In 1984 together with collaborators A N Lasenby F Yusef Zadeh R Wielebinski and U Klein Seiradakis performed some of the first polarimetric observations of Sag A at 10 GHz This study revealed an extended polarised radio source with jet like lobes originating from the Galactic Center 20 In 1986 he joined the Department of Physics of the Aristotle University of Thessaloniki and in 1996 was promoted to Professor As a faculty member he contributed in numerous fields including neutron stars pulsars neutral hydrogen modelling in nearby galaxies the Galactic Center Flare Stars Lunar Transient Phenomena and Archaeoastronomy He published more than 74 scientific papers in refereed journals and more than 80 papers in conference proceedings and special volumes as well as three University level textbooks 21 He was a founding member of the Hellenic Astronomical Society Hel A S where he served as Secretary 1994 1998 22 and as President 1998 2002 22 He served as Member 1986 1990 and as Chairman 2001 2005 of the Greek National Committee for Astronomy Antikythera mechanism Edit The Antikythera mechanism is a hand powered analogue computer discovered in 1900 The mechanism had been studied extensively for over a century However in the early 2000s a new effort to analyse it using more advanced imaging techniques commenced the so called The Antikythera Mechanism Research Project 23 AMRP Prof Seiradakis led the Greek involvement in this effort along with Prof Xenophon Moussas and Yannis Bitsakis In 2005 the AMRP was granted permission to study the mechanism using novel tomographic and imaging techniques This new study resulted in breakthrough discoveries regarding the design function and origin of the mechanism The project s findings have been presented in a series of scientific papers 2 24 25 and are summarised in a review article in Nature entitled Our current knowledge of the Antikythera Mechanism 1 by J H Seiradakis and M G Edmunds They have also inspired a large number of popular science articles 26 27 28 29 30 and documentaries 31 Prof Seiradakis gave numerous lectures 32 33 and presentations presenting the new results all over the world including Chicago 34 35 USA Bonn 36 Germany CERN 37 Switzerland etc 16 Education and outreach Edit Seiradakis and the greek delegation during the 2011 5th IOAA in Krakow PolandThrough his teaching and outreach activities Seiradakis played a central role in the development of astronomy in Greece during the entire period of the Third Hellenic Republic Dozens of his students have continued their studies at the postgraduate level in astrophysics and went on to assume faculty research positions both in Greece and abroad 16 38 With the initiative of Prof Seiradakis the 2006 General Assembly of the International Astronomical Union 39 established the International Olympiad on Astronomy and Astrophysics an international competition for high school students which is now one of the International Science Olympiads Seiradakis represented Greece in the IOAA board until his death in 2020 Together with Prof Loukas Zachilas 40 he also led the Greek team from 2007 until 2017 Selected publications Edit Pulsar Associated with the Supernova Remnant IC 443 by Davies J G Lyne A G and Seiradakis J H Nature Volume 240 Issue 5378 pp 229 230 1972 41 Direct observation of pulsar microstructure by Ferguson D C Graham D A Jones B B Seiradakis J J and Wielebinski R Nature Volume 260 Issue 5546 pp 25 27 1976 14 A new symmetrical polarization structure near the galactic centre by Seiradakis J J Lasenby A N Yusef Zadeh F Wielebinski R J and Klein U Nature Volume 317 Issue 6039 pp 697 699 1985 20 Decoding the ancient Greek astronomical calculator known as the Antikythera Mechanism by Freeth T Bitsakis Y Moussas X Seiradakis J H et al Nature Volume 444 Issue 7119 pp 587 591 2006 42 Our current knowledge of the Antikythera Mechanism by J H Seiradakis and M G Edmunds Nature Astronomy Volume 2 p 35 42 2018 43 References Edit a b Seiradakis J H Edmunds M G January 2018 Our current knowledge of the Antikythera Mechanism Nature Astronomy 2 1 35 42 Bibcode 2018NatAs 2 35S doi 10 1038 s41550 017 0347 2 ISSN 2397 3366 S2CID 187601677 a b Freeth T Bitsakis Y Moussas X Seiradakis J H Tselikas A Mangou H Zafeiropoulou M Hadland R Bate D Ramsey A Allen M November 2006 Decoding the ancient Greek astronomical calculator known as the Antikythera Mechanism Nature 444 7119 587 591 Bibcode 2006Natur 444 587F doi 10 1038 nature05357 ISSN 1476 4687 PMID 17136087 S2CID 4424998 Associate Prof Elena Seiradake www bioch ox ac uk Retrieved 2020 05 03 Newsroom 2020 05 03 Giannhs Seiradakhs Pe8ane o spoydaios astrofysikos CNN gr in Greek Retrieved 2020 05 03 Efyge apo th zwh o ka8hghths Astrofysikhs toy AP8 Giannhs Seiradakhs Kathimerini www kathimerini gr Retrieved 2020 05 03 Pe8ane o diakekrimenos ka8hghths Astrofysikhs Giannhs Seiradakhs in gr 3 May 2020 Retrieved 2020 05 03 Kalogera Vassiliki Kramer Michael 2020 06 25 John Hugh Seiradakis Nature Astronomy 4 7 639 640 Bibcode 2020NatAs 4 639K doi 10 1038 s41550 020 1145 9 ISSN 2397 3366 Minutes of the 2021 06 07 GC meeting of HelAS PDF a href Template Cite web html title Template Cite web cite web a CS1 maint url status link Astronomy Tree John Hugh Seiradakis academictree org Retrieved 2020 05 04 Univ of Manchester MSc Thesis High sensitivity pulsar search 1973 a href Template Cite web html title Template Cite web cite web a CS1 maint url status link Univ of Manchester PhD Thesis Low latitude pulsar survey at 408 MHz 1975 a href Template Cite web html title Template Cite web cite web a CS1 maint url status link Astronomy Tree John Hugh Seiradakis academictree org Retrieved 2020 05 03 Prof Dr Richard Wielebinski Max Planck Institute for Radio Astronomy www mpifr bonn mpg de Retrieved 2020 05 03 a b FERGUSON DALE C GRAHAM DAVID A JONES BEVAN B SEIRADAKIS JOHN H WIELEBINSKI RICHARD 1976 Direct observation of pulsar microstructure Nature Springer Science and Business Media LLC 260 5546 25 27 Bibcode 1976Natur 260 25F doi 10 1038 260025a0 ISSN 0028 0836 S2CID 4261567 Humboldt Foundation www humboldt foundation de Retrieved 2020 05 03 permanent dead link full citation needed a b c Personal Website of John Seiradakis www astro auth gr Retrieved 2020 05 03 full citation needed Huchtmeier W K Seiradakis J H Materne J 1980 1980A amp A 91 341H Page 341 Astronomy and Astrophysics 91 341 Bibcode 1980A amp A 91 341H Retrieved 2020 05 03 full citation needed Huchtmeier W K Seiradakis J H Materne J 1981 1981A amp A 102 134H Page 134 Astronomy and Astrophysics 102 134 Bibcode 1981A amp A 102 134H Retrieved 2020 05 03 full citation needed Huchtmeier W K Seiradakis J H 1985 1985A amp A 143 216H Page 216 Astronomy and Astrophysics 143 216 Bibcode 1985A amp A 143 216H Retrieved 2020 05 03 full citation needed a b Seiradakis J H Lasenby A N Yusef Zadeh F Wielebinski R Klein U 1985 A new symmetrical polarization structure near the galactic centre Nature Springer Science and Business Media LLC 317 6039 697 699 Bibcode 1985Natur 317 697S doi 10 1038 317697a0 ISSN 0028 0836 S2CID 4228841 Publications of J H Seiradakis NASA ADS a href Template Cite web html title Template Cite web cite web a CS1 maint url status link a b Hel A S Past Councils helas gr Retrieved 2020 05 04 Antikythera Mechanism Research Project www antikythera mechanism gr Archived from the original on 2012 10 05 Retrieved 2020 05 03 Anastasiou M Seiradakis J H Carman C C Efstathiou K November 2014 The Antikythera Mechanism The Construction of the Metonic Pointer and the Back Plate Spirals Journal for the History of Astronomy 45 4 418 441 Bibcode 2014JHA 45 418A doi 10 1177 0021828614537185 hdl 11336 33797 ISSN 0021 8286 S2CID 123797880 Anastasiou Magdalini Seiradakis John H Evans James Drougou Stella Efstathiou Kyriakos May 2013 The Astronomical Events of the Parapegma of the Antikythera Mechanism Journal for the History of Astronomy 44 2 173 A10 Bibcode 2013JHA 44 173A doi 10 1177 002182861304400204 ISSN 0021 8286 S2CID 117172438 Ancient Moon computer revisited BBC News 2006 11 29 Retrieved 2020 05 03 Seabrook John 2007 05 14 Fragmentary Knowledge The New Yorker Retrieved 2020 05 03 Antikythera Mechanism Athens February 10 May 28 ekathimerini com 2017 02 11 Retrieved 2020 05 03 Resnick Brian 2017 05 17 The Antikythera mechanism is a 2 000 year old computer Vox Retrieved 2020 05 03 Keats Jonathon 2019 07 30 What Is The Ultimate Machined Object A New Exhibit Of Ingenious Devices Shows How Innovation Works Forbes Retrieved 2020 05 03 The Two Thousand Year Old Computer BBC 2012 05 10 Retrieved 2020 05 03 Antikythera Mechanism Athens February 10 May 28 Kathimerini www ekathimerini com Retrieved 2020 05 03 Understanding An Ancient Greek Computer www cbsnews com Retrieved 2020 05 03 Center for Interdisciplinary Exploration and Research in Astrophysics legacy ciera northwestern edu Retrieved 2020 05 03 The World s Oldest Computer The Antikythera Mechanism www nationalhellenicmuseum org Retrieved 2020 05 03 idw Image for The Antikythera Mechanism Decoding an astonishing 2nd century BCE astronomical computer idw online de Retrieved 2020 05 03 CERN Geneva Seiradakis John eds 2018 The Antikythera Mechanism Decoding an astonishing 2000 years old astronomical computer Academic Training Lecture Regular Programme Welcome Home Max Planck Institut fur Radioastronomie 2016 08 01 Retrieved 2020 05 03 International Astronomical Union IAU 2006 08 14 Retrieved 2020 05 05 Dr Loukas Zachilas www econ uth gr Retrieved 2020 05 11 DAVIES J G LYNE A G SEIRADAKIS J H 1972 Pulsar Associated with the Supernova Remnant IC 443 Nature Springer Science and Business Media LLC 240 5378 229 230 Bibcode 1972Natur 240 229D doi 10 1038 240229a0 ISSN 0028 0836 S2CID 4215039 Freeth T Bitsakis Y Moussas X Seiradakis J H Tselikas A Mangou H Zafeiropoulou M Hadland R Bate D Ramsey A Allen M Crawley A Hockley P Malzbender T Gelb D Ambrisco W Edmunds M G 2006 Decoding the ancient Greek astronomical calculator known as the Antikythera Mechanism Nature Springer Science and Business Media LLC 444 7119 587 591 Bibcode 2006Natur 444 587F doi 10 1038 nature05357 ISSN 0028 0836 PMID 17136087 S2CID 4424998 Seiradakis J H Edmunds M G 2018 Our current knowledge of the Antikythera Mechanism Nature Astronomy Springer Science and Business Media LLC 2 1 35 42 Bibcode 2018NatAs 2 35S doi 10 1038 s41550 017 0347 2 ISSN 2397 3366 S2CID 187601677 Retrieved from https en wikipedia org w index php title John Hugh Seiradakis amp oldid 1146309026, wikipedia, wiki, book, books, library,

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