In physics, conservation laws are important theoretical insights. But what do conservation laws state in general. They state that a physical quantity in a closed system remains constant. Explaining the closed system as a system, no forces act on. An important principle of conservation brought Max Planck the Nobel Prize, in addition to his discovery of the Planck constant h: The conservation of energy! These conservation laws can be applied to reactions. In chemistry, for example, says the mass conservation law, see also wikipedia on the Lomonosov-Lavoisier law that the mass, which the substances have before the reaction, in addition is the same as the product of the reaction. A good example might be the conservation of momentum. A car has a speed of 100 km / h and a mass of one ton. It now collides with a resistance and is braked abruptly, then the pulse is converted. It is not lost, but changes into a strain pulse that scrapped the car.
Conservation laws have always had a fascination because they are very symmetrical. Applying for example the conservation of energy to the universe or the Big Bang theory, we see that with the time the energy must be remained constant. Since before the big bang was probably no energy, the energy of the universe must be constantly 0. Consequently, for any positive particle there has to be a negative one, so that in addition they compensate . The same applies to the mass, there must be positive and negative masses, otherwise my postulated mass conservation law would be wrong.
My contribution to conservation laws already known:
So here's my contribution to new conservation laws, namely the laws of conservation of the basic variables.