Hellenic Net

ΕΛΛΗΝΙΚΑ 1) The Pythagorean Theorem: This theorem is foundational to our understanding of geometry. It describes the numbers toe relationship between the sides of a right triangle on a flat plane: square the lengths of the short sides, a and b, add those together, and you get the square of the length of the long side, c. This relationship, in some ways, actually distinguishes our normal, flat, Euclidean geometry from curved, non-Euclidean geometry. For example, a right triangle drawn on the surface of a sphere need not follow the Pythagorean theorem. 2) Logarithms : Logarithms are the inverses, or opposites, of exponential functions. A logarithm for a particular base tells you what power you need to raise that base to to get a number. For example, the base 10 logarithm of 1 is log(1) = 0, since 1 = 10 0 ; log(10) = 1, since 10 = 10 1 ; and log(100) = 2, since 100 = 10 2 . The equation in the graphic, log(ab) = log(a) + log(b), shows one of the most useful applications of logarithms: th...

ΕΛΛΗΝΙΚΑ 10 significant scientific discoveries made by Greek  scientists in the 20th century: Georgios Papanicolaou - Known for the development of the Pap test for cervical cancer screening. Constantine Carathéodory - Made important contributions to real and complex analysis and the calculus of variations. Leonidas Zervas - Notable for the Bergmann-Zervas synthesis and Z-group discovery in chemistry. K.C. Nicolaou - Renowned for the first total synthesis of taxol in chemistry. Panayotis Katsoyannis - Recognized for the first chemical synthesis of insulin in chemistry. Michael Dertouzos, Nicholas Negroponte, John Argyris, Joseph Sifakis, Christos Papadimitriou, Mihalis Yannakakis - Made significant contributions to computer science. Demetrios Christodoulou, Achilles Papapetrou, Dimitri Nanopoulos, John Iliopoulos - Notable physicists with extensive work in various fields of physics. Fotis Kafatos - Known for contributions to cDNA cloning technology in biology. Constantine Paparrigop...