Slay Them With Your Creativity.



I had discovered, early in my researches, that their doctrine was no merechemical fantasy, but a philosophy they applied to the world, to the elements,and to man himself.
- W.B. Yeats, Rosa Alchemica

Zed is for Weak Interaction

A fundamental interaction is a mechanism by which particles interact with each other, and which cannot be explained by another more fundamental interaction. Every observed physical phenomenon, from galaxies colliding with each other to quarks jiggling around inside a proton, can thus be explained by these interactions. Because of their fundamental importance, understanding of these interactions has occupied the attention of physicists for over half a century and continues to do so.

Traditionally, modern physicists have counted four fundamental interactions: gravitation, electromagnetism, the weak interaction, and the strong interaction. Their magnitude and behavior vary greatly, as can be seen in the table below. Yet, it is strongly believed that three of these interactions are manifestations of a single, more fundamental, interaction, just as electricity and magnetism are now understood as two aspects of the electromagnetic interaction. Electromagnetism and the weak nuclear forces have been shown to be two aspects of a single electroweak interaction at low energy limit. Grand unified theories seek to unify the electroweak force and the strong nuclear interaction, but none have passed experimental muster as of 2006. The topic of unifying gravitation with the other three into an interaction that is completely universal is called quantum gravity.

Interaction Current Theory Mediators Relative Strength1 Long-Distance Behavior
Strong Quantum chromodynamics
gluons 1038 1 (see discussion below)
Electromagnetic Quantum electrodynamics
photons 1036  
Weak Electroweak Theory
(GWS theory)
W and Z bosons 1025  
Gravity General Relativity
(GR, not a quantum theory.)
gravitons 1  

These interactions are sometimes called fundamental forces, although many find this terminology misleading because they cannot be described by classical potentials and forces in the Newtonian sense. For example, according to general relativity, no gravitational force is acting at a distance to cause a body to accelerate. Instead, body is moving in inerial motion along a straight line in the curved spacetime (such line in curved spacetime is called geodesics). In addition, the weak interaction need not even result in the same outgoing particles as those that entered the interaction. The modern quantum mechanical view of the three fundamental forces (all except gravity) is that particles of matter (fermions) do not directly interact with each other, but rather carry a charge, and exchange virtual particles (gauge bosons), which are the interaction carriers or interaction mediators. Thus, for example, photons are the mediators of the interaction of electric charges; and gluons are the mediators of the interaction of color charges. This coupling of matter (charged fermions) with force mediating particles (gauge bosons) is the result of fundamental symmetries of nature. Mathematically, the coupling is captured by Noether's theorem.

from Wikipedia

Using Your Physics

Check out the wonderful words and links here and your creativity is bound to transmute and transform. Whole days could be spent exploring things like, potentials, forces, charges, magnetism and hopefully we will gather a collection of wonderful Zed's to fill up the side bar.