Nicolaos Caranicolas was born in
Komotini, Greece, on the 12th of April, 1948. He received his B.Sc. in Physics in 1971 as well as a B.Sc. in Mathematics in 1977, from the University of Thessaloniki. He completed his Ph.D. in 1982 and joined the faculty of the Department of Physics. His research interests were on Dynamical Astronomy. He retired as an Associate Professor in 2015.
Emeritus Professor of Electronics, Department of Informatics and Telecommunications, University of Athens, Greece. He was born in Patras, Greece, on the 5th of August, 1928 and passed away on December 5, 2021 in Athens. He received the B.Sc. in Physics from the University of Athens, Greece (1953), the M.Sc. in Radioelectrology from the same University (1956), the Certif. Electr. Orsay (1961), the 3me cycle from CEA/Saclay (1961), a Ph.D. from the University of Athens, Greece (1963) and the Doctorat d’ Etat, from the University of Paris (1964). He has been Maitre de Research at the CNRS (France), Chief Assistant at the Laboratory of Electronics of the Physics Department of the University of Athens, Greece, Professor of Electronics at the Department of Physics, University of Athens (until 1989), Chairman of this Department for seven years (1982-1989), Director of the Section of Applied Physics and Director of the Electronics Laboratory of the same Department, Director of the Section of Telecommunications and Signal Processing of the Department of Informatics and Telecommunications, Director of the Ionospheric ￼Institute of the National Observatory of Athens, Greece and President of the Advisory Committee for Research and Technology of the Government of Greece (1983). His scientific interests included the radio observations of the Sun, ionospheric physics and the antennas, digital signal processing, and digital telecommunications.
Evangelos Chaliasos was born in Domianous Evritanias, Greece, on the 28th of December, 1947. He received his B.Sc. in Mathematics (1971) and in Physics (1979) from the University of Athens, Greece. He obtained a M.Sc. in Astronomy from the University of Chicago, U.S.A. (1988) and his Ph.D. from the University of Athens. His scientific interest was in relativistic Astrophysics. He passed away in December 2020.
Vassilis Charmandaris was born in Serres Greece in 1967. He completed his undergraduate studies in Physics at the University of Thessaloniki in 1989 and continued his graduate studies in the US obtaining his PhD in Astrophysics at Iowa State University in 1995. After a postdoctoral fellowship with the ISO/CAM group at the Astrophysics section of CEA/Saclay (France) he was awarded a Marie Curie fellowship at the Observatoire de Paris (France). In 1999 he moved back to the US and spent 6 years at the Astronomy Department of Cornell University to work on the development of the Infrared Spectrograph of the Spitzer Space Telescope. In February 2005, he joined the faculty of the Department of Physics of the University of Crete, where since 2014 he is Professor of Observational Astrophysics. During 2013-2018 he was the Director of the Institute for Astronomy, Astrophysics, Space Applications and Remote Sensing of the National Observatory of Athens. Since 2013 he is on the Board of Directors of the journal Astronomy & Astrophysics, serving on its Executive Committee since 2017 and as Vice Chair since 2021. He was a member of the Haut Comite Scientifique of Paris Observatory (2015-2020), the Astronomy Working Group of ESA (2019-2021) and the Scientific Council of INSU/CNRS (2019-2023). Since 2019 he is the Director of the Institute of Astrophysics of FORTH and Director of Skinakas Observatory.
C. Chassapis (b. 4/17 Sept. 1914 Veroia, Greece – d. 10 July 1972, Athens, Greece).
For many years he worked as school teacher at a small mountainous village and later at Papastratos School in the town of Agrinion, but his passion was astronomy. Equipped with his small telescope, he became an excellent observer of variable stars. After the Second World War his high quality observations raised Campbell’s interest, who would like to know the status of this excellent observer. So, in 1946 Chassapis having been recognized as amateur astronomer he succeeded his transfer to Athens and especially his position as astronomer at Penteli Observatory. Later he finished his studies in the Department of Mathematics at Athens University. He was widely appreciated for his public lectures on astronomical topics as well as for his popular articles in daily and periodical press and encyclopaidias. His first book on astronomy “The Life on planet Mars” has been published in 1935 and his voluminous “Contemporary popular astronomy” (p. 835) in 1957; a summary of the latter was the new book of “Cosmography” for high schools (join work with D. Kotsakis). His major contributions were “Greek astronomy in the 2nd millennium B.C. according to Orphic hymns” (PhD Thesis at Athens University, 1967), “The Star of Bethlehem” (1970), continued in the (till now) unpublished “Determination of the Date of Jesus Christ’s Resurrection” (1971). After his sudden death in 1972, his student Maria Papathanassiou has published long articles-summaries of his work. During this last years he collaborated with Eugenides Foundation lecturing either in the Planetarium or the great Amphitheatre.
Theodoros Christides was born in 1940. He studied at the experimental high school of Thessaloniki (1952-1958) and obtained his BSc in Physics from the University of Thessaloniki. He worked originally as a high-school teacher (1965-1972) followed by a position of an assistant at the Dept. of Physics of the Univ. of Thessaloniki. There he obtained his PhD (1978) and taught courses of history and philosophy of science. He continued with postdoctoral studies in the History and Philosophy of Science at Chelsea College in London (1979-1980) at the Fondation Louis de Broglie in Paris (1987-1988). In 1998 he was elected Professor of history and philosophy of science at the Department of Primary Education of the Univ. of Thessaly. He retired and became emeritus in 2007.
Demetrios Christodoulou (Greek: Δημήτριος Χριστοδούλου; born October 19, 1951) is a Greek mathematician and physicist, who first became well known for his proof, together with Sergiu Klainerman, of the nonlinear stability of the Minkowski spacetime of special relativity in the framework of general relativity.
Christodoulou was born in Athens and received his doctorate in physics from Princeton University in 1971 under the direction of John Archibald Wheeler. After temporary positions at Caltech, CERN, and the Max Planck Institute for Physics, he became Professor of Mathematics, first at Syracuse University, then at the Courant Institute, and at Princeton University, before taking up his current position as Professor of Mathematics and Physics at the ETH Zurich in Switzerland.
In 1993, he published a book coauthored with Klainerman in which the extraordinarily difficult proof of the stability result is laid out in detail. In that year, he was named a MacArthur Fellow. In 1991, he published a paper which shows that the test masses of a gravitational wave detector suffer permanent relative displacements after the passage of a gravitational wave train, an effect which has been named "nonlinear memory effect". In the period 1987–1999 he published a series of papers on the gravitational collapse of a spherically symmetric self-gravitating scalar field and the formation of black holes and associated spacetime singularities. He also showed that, contrary to what had been expected, singularities which are not hidden in a black hole also occur. However, he then showed that such "naked singularities" are unstable. In 2000, Christodoulou published a book on general systems of partial differential equations deriving from a variational principle (or "action principle"). In 2007, he published a book on the formation of shock waves in 3-dimensional fluids. In 2009 he published a book where a result which complements the stability result is proved. Namely, that a sufficiently strong flux of incoming gravitational waves leads to the formation of a black hole.
Christodoulou is a recipient of the Bôcher Memorial Prize, a prestigious award of the American Mathematical Society. The Bôcher Prize citation mentions his work on the spherically symmetric scalar field as well as his work on the stability of Minkowski spacetime. In 2008 he was awarded the Tomalla prize in gravitation. In 2011, he and Richard S. Hamilton won the Shaw Prize in the Mathematical Sciences, "for their highly innovative works on nonlinear partial differential equations in Lorentzian and Riemannian geometry and their applications to general relativity and topology". The citation for Christodoulou mentions his work on the formation of black holes by gravitational waves as well as his earlier work on the spherically symmetric self-gravitating scalar field and his work with Klainerman on the stability of Minkowski spacetime. Christodoulou is a member of the American Academy of Arts and Sciences and of the U.S. National Academy of Sciences. In 2012 he became a fellow of the American Mathematical Society. In 2014 he was a plenary speaker at the ICM in Seoul.