Monday, May 21, 2012

What the Heck Is an Electromagnetic Waveguide?

Many people ask themselves this question upon hearing the term "electromagnetic waveguide." The most basic description of a waveguide is a sort of tube that directs electromagnetic waves from one end to another. Many times, these waves are microwave frequency when dealing with electromagnetic waveguide. There are also optical waveguides that direct a different spectrum of waves. The most common optical waveguide is fiber-optic cable, like the ones used for many modern television and internet companies.

Electromagnetic waveguides specifically transmit waves like radio and microwaves from point to point using a metal pipe or tube. Waveguides are actually an integral part of most peoples' daily lives, whether they are actively aware of this or not. Your microwave, radio, televisions, and most common electrical appliances have many waveguides. Waveguides are an integral part of most of the technology that everyone uses on a daily basis.

The basic principles behind waveguides are that they use metal to reflect the waves across a distance. The waves bounce off the walls while moving forward, sort of like a pinball action. In a dielectric waveguide, like a coaxial cable that most cable boxes used up until recently, the wave moves through a solid piece of metal. This method does not bounce the wave around like a pinball, but rather conducts the wave through a metal wire. Coaxial cables usually employ copper as the conductive metal; a dielectric material covers the copper and allows the wave to continue to move through with minimal leakage.

Tuesday, May 8, 2012

Why God Particle Demonstration Is a Flop Show?

Higgs Boson later renamed as God Particle by Leon M. Lederman in 1993 was speculated for the first time in 1962 by Philip Warren Anderson on the basis of mathematical-logical derivation having roots in the then contemporary beliefs of Physicists. It was further speculated that once its existence, even if transient, is experimentally proved, then it shall be possible to explain entire cosmic phenomena on its basis right from origin of universe up to evolution of man and even thereafter.

Therefore, it was not surprising that a large number of Physicists got down to the task of speculating the experimental conditions under which transiently existent God Particles can be demonstrated. A group of Physicists visualized that if in a linear accelerator, Hydrogen Particles are accelerated to the velocity of light, it should be possible to demonstrate its existence. Hence at CERN, Large Hadron Collider experiment was conceived and implemented.

Scientists at CERN built world's largest linear particle accelerator 27 kilometers long, 175 meters below the surface of earth across Franco- Swiss border at Geneva. After spending huge amount of time and money the experiment was commissioned on 10th September, 2008 and the world waited anxiously for the final announcement affirming existence of God Particle. However even after nearly 4 years, there are only assurances and final announcement is still awaited.