the physics of interstellar dust

... would shorten R Feynman’s Lectures on Physics? They are the work of a genius not because of the formulae, they are the usual ones but because of the way the story is told. And a successful struggle with ... polarization P in the material of length P. When damping is weak, P lags behind E by a small angle ϕ .The real part of the complex electric susceptibility is equa...

Ngày tải lên: 24/04/2014, 17:20

... misconceptions about the appearance of the Golden Ratio in the arts (e.g. in the works of Giotto, Seurat, Mondrian). The history of art has nevertheless shown that artists who have produced works of truly ... that the occurrence of the numbers 3, 7, and 22, in this series is not a coincidence and the above construction was behind the identification of the 22...

Ngày tải lên: 19/02/2014, 17:20

... exploring the consequences of QCD for the spec- trum and decay of baryons; identifying the important degrees of freedom for the description of the majority of hadrons; and discovering the nature of the ... cnp@cc.uoa.gr The detailed investigation of the N—fA transition offers one of the best avenues to understand the structure of hadrons and the intr...

Ngày tải lên: 05/03/2014, 11:21

... gravity in the evolu- tion of the Universe. The discovery of the Expansion of the Universe provided the most important established feature of the modern cosmological picture. In addition, the observation ... a series of BBC radio talks, published in The Nature of the Universe (1950). Fred Hoyle was the main proponent of the rival Steady State Theory [9]...

Ngày tải lên: 17/03/2014, 13:35

... Department of Physics University of Athens Department of Mathematics Aristotle University of Thessaloniki ChairItlan Department of Applied Mathematics and Physics National Technical University of ... financial support of the Ministry of Culture of the Hellenic Republic and the personal interest of the Minister, Professor Evangellos Venizelos. The excel...

Ngày tải lên: 28/03/2014, 10:20

... the constant of proportionality, is called the stiffness and the negative sign shows that the force is acting against the direction of increasing displacement and back towards 1 The Physics of ... ð!t þ Þ The maximum value of sin (!t þ ) is unity so the constant a is the maximum value of x, known as the amplitude of displacement. The limiting values of...

Ngày tải lên: 24/04/2014, 17:22

... the sky, the burning of re, the warmth of a human body, the waves of the sea and the mood changes of people are all composed of particles in motion. is story is told in more detail in the second ... in the coming years are the origin of the three dimensions of space, the origin of time and the details of the big bang. — Current research indicates...

Ngày tải lên: 19/01/2014, 12:17

... small fraction of the mass of the visible matter in the universe. So, the origin of 99 percent of the mass of the visible matter in the universe can be traced back to the energy of moving quarks ... advance the frontiers of the science. Of course it is the importance of the physics and of the potential discoveries enabled by the new capabil...

Ngày tải lên: 12/02/2014, 16:20

... of the past decade illustrates this point: • The confirmation of the existence of gravitational waves by the observed shortening of the orbital period of a binary pulsar. • The detection of the ... GRAVITATIONAL PHYSICS: EXPLORING THE STRUCTURE OF SPACE AND TIME of space and time. The application of this new theory to predict the outcome of black hole...

Ngày tải lên: 12/02/2014, 16:20

... Weizs¨acker’s observations, especially in the third part of the book, are of extraordinary value for the history of science. The physical core of the book, the presenta- tion of ur theory in the first part, offers ... ur theory). If the ur hypothesis is correct, the symmetry of urs must play a distinguished role in physics. At this point the second pillar of...

Ngày tải lên: 05/03/2014, 11:21