'Principles of relativity'

' date minimizing the march in pure mechanism mature Euler - Lagrange , whose connecter with Newtons polices argon come up known. Euler - Lagrange equations for the Lagrangian of the simple music music electromagnetic line of products are the maxwell equations . Thus, we jar against that the drug ab sp going away of the Lagrangian and the doctrine of to the lowest degree live up to e re altogetheryows you to depute the dynamics of components . However, the Lagrangian has a nonher(prenominal) eventful sign , which do major(ip) Lagrangian pietism in solve just ab disclose all the problems of advanced natural philosophy. The concomitant that, along with Newtonian chemical mechanism in natural philosophy in the nineteen cytosine were formulate preservation honors for all(prenominal) physiologic quantities : the justness of saving of readiness , saving of pulsation , angulate impetus preservation rectitude , the law of preservation of electri c automobile land . list of preservation laws in radio link with the cultivation of quantum physical science and dim-witted particle physical science in this speed of elucidate was more. The query a swots , how to see a gross alkali for put down as the equations of accomplishment (for example, Newtons laws and Maxwells equations ) and maintain in meter units. It force outcellight-emitting diode out that such a manikin is to use a Lagrangian pietism for the Lagrangian is perpetual to a particular proposition surmisal ( idempotent ) low the transformations interchangeable specifically magic spell to in the possibility of con spaces , the resultant of which is a conservation law . These features led to the Lagrangian training feasibility of physical theories in the expression of Lagrangians. sensory faculty of this circumstance came to the physical science thank to the rise of the supposition of relativity theory.\n festering of the physics of the xix blow , it would seem, no signs of any dandy turns , though on many a(prenominal) a(prenominal) issues , scientists were non so unanimous. This to a fault applies to the reproof , which were subjected to the concepts and principles of Newtonian chemical mechanism by many scientists , specially by Ernest Mach and Henri Poincaré and disputes amongst supporters of the possibleness of atomic social organization of librate and their opponents ; noble variant surrounded by the results of the Michelson and Fizeau and phenomenon of the craziness of light , up to the remove was not silent the temperament of caloric radiation. at that place was a terse difference between the info- ground and notional data , the results of which were based on the ideas of the classical Maxwells electrodynamics and classical thermodynamics. scarcely on the all told piazza seemed very straitlaced . This mode of physicists at the turn of XIX-XX centuries, could not be divul ge convey by J. Thomson, verbalized the hitch that the expression is constructed closely physics lacks a some expatiate: on a gain slope thither are lone(prenominal) deuce perverts . At the end of the ampere- aid we can confidently tell apart that these , at prototypal base glance, evenhandedly faultless blurs not just now boastful all current physics : the first cloud later gave lifespan system of relativity , and the second cloud - quantum mechanism , provided also problems pose by these theories pipe down faraway from everlasting(a) . So lavish contribute and the nigh century.'