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Speaker |
Sigismondi, Costantino |
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Coauthors |
Sigismondi, Costantino; Pompa, Tiziana; Impellizzeri Daniele; Alberelli, Giorgia; Tricase, Simone |
| Talk Title |
Historical, Philosphical and Theological framing of General Relativity for High School students |
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Abstract |
An approach to Quantum Physics through spectroscopy, thanks to the wave-particle behavior of the photon,is possible with many diffraction experiments. Selection rules Helium and Coronium searches are also important. In General Relativity the interferometer of Michelson has been adapted to gravitational waves in LIGO/VIRGO (2015); it can be realized at school. The Solar figure, spherical within few parts in a million, was measured by Dicke to assess the possibility of a scalar-tensorial theory beyond Einstein and now is measured to understand the physics of solar secular variabiliy, so important for our climate (Sigismondi, 2012). General Relativity was important to the view of the World as much as Quantum Physics. With Einstein the Physical Cosmology was born, because the Universe's behavior was comprised as a consequence of the matter's distribution (Peebles, Priciples of Physical Cosmology, 1990). The Galileian idea of same physics on the Earth and across all Universe reached its maximum extent. The Cosmological Constant and later stationary Universe of Hoyle, Bondi and Gold, and finally Hawking and Hartle proposed a Universe, conceptually not different from Aristotle's one, while Lemaitre proposed an evolutionary Universe, finding the observational proofs. The hot big bang theory was confirmed by the Cosmic Background Radiation discovery (1965) even if Zeldovic (1962) theorized a cold one, based upon Fermi energy. The role of Cosmic Ether, object of the studies of Michelson and Morley, is now played by the Dark Energy, novel Cosmological Constant, and producing an accelerating Universe. Comparing the theories of expanding Universe, eternal Universe, oscillating Universe with the ancient ones, made by Aristotle and condemned by Etienne Tempier bishop of Paris in 1277, is also important. According to Pierre Duhem (Système du Monde, 1913-58), this act was the starting point of the modern science. The construction of the theory, moreover, is based upon some principles, and the speed of light in vacuum-the veritable "celeritas"- cannot be surpassed. The recent (2011) debate of OPERA results in Gran Sasso National Laboratories and CERN of Geneva can be studied in this optics. Provided this frame, there are plenty of motivations to know the essence of General Relativity and its contribution to the view of our World. |
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