Symmetry

Symmetry in Physical Laws

'Symmetry' has a special meaning in physics. A picture is said to be symmetrical if one side is somehow the same as the other side. Precisely, a thing is symmetrical if one can subject it to a certain operation and it appears exactly the same after the operation. For example, if we look at a base that is left and right symmetrical, then turn it 180° around the vertical axis it looks the same. Newton's laws of motion do not…

Higgs-and-englert

Finally a Physics Nobel Prize for Higgs boson Theorists

The 2013 Nobel Prize for physics has been awarded to Peter Higgs and Francois Englert for their remarkable contributions to the theory of Higgs boson "God Particles". It came after 50 years Peter Higgs, Robert Brout, Gerald Guralnik, C R Hagen, T. W. B. Kibble and Francois Englert independently announced the existence of Higgs boson in 1964 to put the theory to the world how the mass comes into existence in objects. On 8th October 2013, the Royal Swedish Academy…

Morocco-1239781

Tunnel through the Earth

What if we make a tunnel through the earth and drop a ball or any other body into it? How would the gravity behave on the ball, and , will the ball pop-up on the other side? If yes, then how much time will it take? A question, which is usually asked in competitive exams and for general interest.  This article is a descriptive analysis of bodies inside the tunnel through earth. To do so, we assume no- frictional forces…

Un-Popular circumstances connected with Most Popular, Theory of Relativity

Henry Poincaré was trying to save the Old classical theory of Physics by Suitable Adjustments & Modifications in it. When the experiments, like Michelson Morley Experiment, in search of the ether drift failed, it began to be increasingly realized that there was no such thing as an absolute or privileged frame of reference and that the basic laws of physics took the same form in all inertial frames of reference. The implications of the Galilean Invariance principle were emphasized by…

East-west-effect

Cosmic Radiations – East West Effect -Discovery of Positron- Cosmic Ray Showers

Cosmic Rays or Cosmic Radiation Soon after 1900 it was shown by scientists that the air in an ionisation chamber, which was completely protected against penetration of α , β and γ rays, by surrounding it with thick lead walls, was still conductive; and it was thought that the inns causing this conductivity were produced by some rays coming from an unknown source. In 1911, Hess and Kolhoster, by placing ionization chambers in balloons and sending then to great heights…

Albert Einstein and His introduction to the Concept of Relativity

Albert Einstein This name need not be explained. Albert Einstein is considered to be one of the best physicists in the human history. The twentieth century has undoubtedly been the most significant for the advance of science, in general, and Physics, in particular. And Einstein is the most luminated star of the 20th century. He literally created cm upheaval by the publication, in quick succession, in the year 1905, two epoch-making papers, on the concept of the photon and on…