501:
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 and are summarised in a review article in
525:
93:
31:
507:
entitled, "Our current knowledge of the
Antikythera Mechanism" by J.H. Seiradakis and M.G. Edmunds. They have also inspired a large number of popular science articles and documentaries. Prof. Seiradakis gave numerous lectures and presentations presenting the new results all over the world, including
1861:
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
500:
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" (AMRP). Prof.
320:
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
647:
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".
383:
John
Seiradakis conducted his M.Sc. and Ph.D. projects under the supervision of Dr. John G. Davies. His M.Sc. thesis was entitled "High sensitivity pulsar search." His MSc thesis examiners were Dr. Bryan Anderson and Prof.
404:(MPIfR), working under Prof. Richard Wielebinski. At the MPIfR, he made contributions to the understanding of pulsar emission and helped in the development of the first-generation pulsar instrumentation for the 100-m
484:. 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. He was a founding member of the
569:"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)
566:"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)
1998:
563:"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)
1396:
Anastasiou, Magdalini; Seiradakis, John H.; Evans, James; Drougou, Stella; Efstathiou, Kyriakos (May 2013). "The
Astronomical Events of the Parapegma of the Antikythera Mechanism".
1335:
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".
488:
where he served as
Secretary (1994-1998) and as President (1998-2002). He served as Member (1986-1990) and as Chairman (2001-2005) of the Greek National Committee for Astronomy.
544:
293:
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536:. 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.
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551:. Seiradakis represented Greece in the IOAA board until his death in 2020. Together with Prof. Loukas Zachilas, he also led the Greek team, from 2007 until 2017.
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560:"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)
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Seiradakis, J. H.; Lasenby, A. N.; Yusef-Zadeh, F.; Wielebinski, R.; Klein, U. (1985). "A new symmetrical polarization structure near the galactic centre".
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Through his teaching and outreach activities, Seiradakis played a central role in the development of astronomy in Greece during the entire period of the
1498:
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1598:
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FERGUSON, DALE C.; GRAHAM, DAVID A.; JONES, BEVAN B.; SEIRADAKIS, JOHN H.; WIELEBINSKI, RICHARD (1976). "Direct observation of pulsar microstructure".
375:
decided to honour his memory by naming one of the plenary lectures of the biannual conference of the
Society to "John H. Seiradakis Plenary Lecture".
396:. 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.
401:
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1988:
1978:
572:"Our current knowledge of the Antikythera Mechanism" by J. H. Seiradakis and M. G. Edmunds, Nature Astronomy, Volume 2, p. 35-42 (2018)
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In 1984, together with collaborators A. N. Lasenby, F. Yusef-Zadeh, R. Wielebinski and U. Klein, Seiradakis performed some of the first
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1983:
388:. For his Ph.D. project, entitled "Low latitude pulsar survey at 408 MHz", he designed and conducted a sensitive survey for
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408:. He returned to the MPIfR several times during his career; in 1979 as a postdoctoral researcher, from 1982 to 1984 as an
372:
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1993:
329:, from which he received his Degree in Physics in 1971 (Class of 1970). He continued his post-graduate studies at the
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at 10 GHz. This study revealed an extended polarised radio source with jet-like lobes originating from the
211:
1549:
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DAVIES, J. G.; LYNE, A. G.; SEIRADAKIS, J. H. (1972). "Pulsar Associated with the Supernova Remnant IC 443".
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533:
1696:"idw - Image for: The Antikythera Mechanism: Decoding an astonishing 2nd century BCE astronomical computer"
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and in 1996 was promoted to Professor. As a faculty member, he contributed in numerous fields, including
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Seiradakis, J. H.; Edmunds, M. G. (January 2018). "Our current knowledge of the Antikythera Mechanism".
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1550:"What Is The Ultimate Machined Object? A New Exhibit Of Ingenious Devices Shows How Innovation Works"
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Seiradakis, J. H.; Edmunds, M. G. (2018). "Our current knowledge of the Antikythera Mechanism".
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and in 1991 as a visiting researcher on sabbatical leave from the University of Thessaloniki.
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419:. Together with Dr. W. Huchtmeier and others, he performed a comprehensive survey of the
400:. After receiving his Ph.D., Seiradakis moved to Germany as a postdoctoral fellow at the
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The Antikythera Mechanism: Decoding an astonishing 2000 years old astronomical computer
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778:"Έφυγε από τη ζωή ο καθηγητής Αστροφυσικής του ΑΠΘ Γιάννης Σειραδάκης | Kathimerini"
1907:
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932:"Univ. of Manchester PhD Thesis, "Low latitude pulsar survey at 408 MHz.", 1975"
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He had two children, Elena, currently an associate professor of biochemistry at
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Seiradakis and the greek delegation during the 2011 5th IOAA in Krákow, Poland
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970:"Prof. Dr. Richard Wielebinski | Max Planck Institute for Radio Astronomy"
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With the initiative of Prof. Seiradakis, the 2006 General Assembly of the
918:"Univ. of Manchester MSc Thesis, "High sensitivity pulsar search.", 1973"
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1648:"Center for Interdisciplinary Exploration and Research in Astrophysics"
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280:. Since the early 2000s he was heavily involved in the decoding of the
179:
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30:
434:, where he continued his research on pulsar emission and interstellar
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astronomer and professor emeritus at the Department of Physics of the
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1599:"Antikythera Mechanism | Athens | February 10 - May 28 | Kathimerini"
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803:"Πέθανε ο διακεκριμένος καθηγητής Αστροφυσικής Γιάννης Σειραδάκης"
309:
1076:
268:. He is best known for his contributions in the understanding of
513:
260:: Ιωάννης-Χιου Σειραδάκης; 5 March 1948 – 3 May 2020) was a
1870:(7119). Springer Science and Business Media LLC: 587–591.
1818:(5378). Springer Science and Business Media LLC: 229–230.
1222:(6039). Springer Science and Business Media LLC: 697–699.
1137:
Huchtmeier, W. K.; Seiradakis, J. H.; Materne, J. (1981).
1100:
Huchtmeier, W. K.; Seiradakis, J. H.; Materne, J. (1980).
1672:"The World's Oldest Computer: The Antikythera Mechanism"
1525:"The Antikythera mechanism is a 2,000-year-old computer"
1004:(5546). Springer Science and Business Media LLC: 25–27.
1499:"Antikythera Mechanism - Athens - February 10 - May 28"
1999:
National and Kapodistrian University of Athens alumni
1929:(1). Springer Science and Business Media LLC: 35–42.
733:"Γιάννης Σειραδάκης: Πέθανε ο σπουδαίος αστροφυσικός"
352:, and Michael, currently a medical doctor working in
545:
International Olympiad on Astronomy and Astrophysics
294:
International Olympiad on Astronomy and Astrophysics
1741:
Home | Max Planck Institut für Radioastronomie
827:Kalogera, Vassiliki; Kramer, Michael (2020-06-25).
456:In 1986 he joined the Department of Physics of the
430:From 1982 to 1984 he worked as a researcher at the
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40:
21:
877:"Minutes of the 2021-06-07, GC meeting of HelAS"
427:using the 100-m radio telescope at Effelsberg.
1725:. Academic Training Lecture Regular Programme.
371:. On 7 June 2021 the Governing Council of the
327:National and Kapodistrian University of Athens
1719:CERN. Geneva; Seiradakis, John, eds. (2018).
1174:Huchtmeier, W. K.; Seiradakis, J. H. (1985).
642:
640:
8:
1266:"Publications of J.H. Seiradakis - NASA/ADS"
35:Profile photo of John H. Seiradakis (2014)
29:
18:
1623:"Understanding An Ancient Greek Computer"
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852:
1307:"Antikythera Mechanism Research Project"
588:
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486:Hellenic Astronomical Society (Hel.A.S.)
402:Max Planck Institute for Radio Astronomy
232:A low latitude pulsar survey at 408 MHz
202:Max Planck Institute for Radio Astronomy
946:"Astronomy Tree - John Hugh Seiradakis"
894:"Astronomy Tree - John Hugh Seiradakis"
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415:In 1978 he became a researcher at the
359:He died on 3 May 2020 in his house in
1277:
1275:
1077:"Personal Website of John Seiradakis"
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1069:
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7:
1574:"The Two-Thousand-Year-Old Computer"
1398:Journal for the History of Astronomy
1337:Journal for the History of Astronomy
458:Aristotle University of Thessaloniki
318:Mercy Burdett Money-Coutts Seiradaki
266:Aristotle University of Thessaloniki
1449:"Ancient Moon 'computer' revisited"
432:University of California, San Diego
1762:"International Astronomical Union"
1176:"1985A&A...143..216H Page 216"
1139:"1981A&A...102..134H Page 134"
1102:"1980A&A....91..341H Page 341"
468:modelling in nearby galaxies, the
284:. He was a founding member of the
14:
331:Victoria University of Manchester
217:Victoria University of Manchester
150:Alexander von Humboldt Fellowship
708:"Associate Prof Elena Seiradake"
541:International Astronomical Union
91:
549:International Science Olympiads
1989:21st-century Greek astronomers
1979:20th-century Greek astronomers
1676:www.nationalhellenicmuseum.org
1548:Keats, Jonathon (2019-07-30).
1:
1652:legacy.ciera.northwestern.edu
1523:Resnick, Brian (2017-05-17).
1473:Seabrook, John (2007-05-14).
410:Alexander von Humboldt fellow
373:Hellenic Astronomical Society
333:, from which he received his
290:European Astronomical Society
286:Hellenic Astronomical Society
1862:the Antikythera Mechanism".
1311:www.antikythera-mechanism.gr
363:, due to complications from
304:John Seiradakis was born in
2025:
1418:10.1177/002182861304400204
1180:Astronomy and Astrophysics
1143:Astronomy and Astrophysics
1106:Astronomy and Astrophysics
1052:www.humboldt-foundation.de
406:Effelsberg Radio telescope
367:. An obituary appeared in
197:University of Thessaloniki
1943:10.1038/s41550-017-0347-2
1283:"Hel.A.S - Past Councils"
854:10.1038/s41550-020-1145-9
615:10.1038/s41550-017-0347-2
478:Lunar Transient Phenomena
325:. He was admitted to the
247:
168:
28:
1357:10.1177/0021828614537185
212:University of California
1475:"Fragmentary Knowledge"
1192:1985A&A...143..216H
1155:1981A&A...102..134H
1118:1980A&A....91..341H
731:Newsroom (2020-05-03).
534:Third Hellenic Republic
512:(USA), Bonn (Germany),
423:distribution in nearby
829:"John Hugh Seiradakis"
529:
520:Education and outreach
1984:Greek astrophysicists
1787:"Dr. Loukas Zachilas"
1048:"Humboldt Foundation"
974:www.mpifr-bonn.mpg.de
555:Selected publications
527:
498:Antikythera mechanism
492:Antikythera mechanism
417:University of Hamburg
316:, on 5 March 1948 to
282:Antikythera mechanism
207:University of Hamburg
122:Antikythera Mechanism
1603:www.ekathimerini.com
516:(Switzerland), etc.
23:John Hugh Seiradakis
1935:2018NatAs...2...35S
1884:10.1038/nature05357
1876:2006Natur.444..587F
1824:1972Natur.240..229D
1410:2013JHA....44..173A
1349:2014JHA....45..418A
1228:1985Natur.317..697S
1010:1976Natur.260...25F
845:2020NatAs...4..639K
670:10.1038/nature05357
662:2006Natur.444..587F
607:2018NatAs...2...35S
1994:People from Chania
782:www.kathimerini.gr
762:has generic name (
712:www.bioch.ox.ac.uk
530:
398:Bernard E.J. Pagel
1081:www.astro.auth.gr
656:(7119): 587–591.
350:Oxford University
251:
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170:Scientific career
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2016:
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595:Nature Astronomy
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543:established the
482:Archaeoastronomy
466:neutral hydrogen
445:observations of
421:neutral hydrogen
369:Nature Astronomy
278:archaeoastronomy
239:Doctoral advisor
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127:Science outreach
117:Archaeoastronomy
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470:Galactic Center
451:Galactic Center
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343:Radio Astronomy
337:(1973) and his
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274:Galactic Center
254:John Seiradakis
221:
158:Descartes Prize
131:
112:Galactic Center
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16:Greek physicist
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