News
16. 6. 2013: Student Luboš Vozdecký z Gymnázia ve Vyškově (sexta), jehož práci SOČ „Experimentální studium valivých pohybů“ vedl Mgr. Jirka Bartoš, Ph.D. jako školitel a prof. RNDr. Jana Musilová, CSC. jako konzultant, vyhrál celostátní kolo a dostal řadu dalších cen (viz výsledková listina).
13. - 14. 6. 2013: Conference Astronomical education at primary and high schools in 21st century (link)
| Date: | 21. - 24. 9. 2005 |
| Location: | Center of Brno University of Technology, Czech Republic |
| Organizers: | Masaryk University, Brno University of Technology, City of Brno, Brno Centre for European Studies a Union of Czech Mathematicians and Physicists |
| Description: | There will be two life anniversaries of George Placzek in 2005: that of his birth on 26 September 1905, and that of his passing away on 9 October 1955. Placzek was an outstanding scientist who made substantial contributions to the fields of molecular physics, scattering of light from liquids and gases, the theory of atomic nucleus and the interaction of neutrons with condensed matter. His theory of Raman effect is a pioneering work in the field. Lev Landau and George Placzek derived the Landau-Placzek formula for the ratio of intensities of the Brillouin and the Rayleigh scatterings of light. Hans Bethe and George Placzek provided a fundamental theory of neutron absorption resonances, deriving important laws and selection rules. Papers by Niels Bohr, Rudolf Peierls and George Placzek deal with the theory of nuclear reactions and rank among the classics. The well-known optical theorem bears the names of Bohr, Peierls and Placzek. In a series of experiments, Otto Frisch and Placzek discovered that the absorption of neutrons in matter is strongly dependent upon the atomic mass and the velocity of the neutrons, but for slow neutrons and light elements the neutron-capture cross section is inversely proportional to the velocity. |
