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matter cannot be created or destroyed
The law of conservation of mass/matter, also known as principle of mass/matter conservation is that the mass of a closed system will remain constant, regardless of the processes acting inside the system. A similar statement is that mass cannot be created/destroyed, although it may be rearranged in space, and changed into different types of particles. This implies that for any chemical process in a closed system, the mass of the reactants must equal the mass of the products. This is also the main idea of the first law of thermodynamics.
The law of conservation of energy states that the total amount of energy in an isolated system remains constant. A consequence of this law is that energy cannot be created nor destroyed. The only thing that can happen with energy in an isolated system is that it can change form, for instance kinetic energy can become thermal energy. Because energy is associated with mass in the Einstein's theory of relativity, the conservation of energy also implies the conservation of mass in isolated systems (that is, the mass of a system cannot change, so long as energy is not permitted to enter or leave the system).
The total quantity of matter and energy available in the universe is a fixed amount and never any more or less.
In physics, mass–energy equivalence is the concept that mass and energy are the same thing, so that every mass has an energy equivalent and vice versa. This relationship is expressed using the formula
where
E = energy
m = relativistic mass
c = the speed of light in a vacuum (celeritas), (about 3×108 m/s)
Expressed in words: energy equals mass multiplied by the speed of light squared. Because the speed of light is a very large number in everyday units, the formula implies that any small amount of matter contains a very large amount of energy. Some of this energy may be released as heat and light by nuclear transformations.
Mass–energy equivalence was proposed in Albert Einstein's 1905 paper, "Does the inertia of a body depend upon its energy-content?", one of his Annus Mirabilis ("Miraculous Year") Papers.[1] Einstein was not the first to propose a mass–energy relationship, and various similar formulas appeared before Einstein's theory with incorrect numerical coefficients and an incomplete interpretation. Einstein was the first to propose the simple formula and the first to interpret it correctly: as a general principle which follows from the relativistic symmetries of space and time.
In the formula, c2 is the conversion factor required to convert from units of mass to units of energy. The formula does not depend on a specific system of units. Using the International System of Units, joules are used to measure energy, kilograms for mass, meters per second for speed. Note that 1 joule equals 1 kg·m2/s2. In unit-specific terms, E (in joules) = m (in kilograms) multiplied by (299,792,458 m/s)2.
Originally posted by jkrog08
Worm Holes however are not scifi and have been postulated by many and there are many leading theories that state they MUST exist.
Worm Holes General relativity describes the possibility of configurations in which two black holes are connected to each other. Such a configuration is usually called a wormhole. Wormholes have inspired science fiction authors because they offer a means to travel quickly over long distances and even time travel. In practice, such configurations seem completely unfeasible in astrophysics, because no known process seems to allow the formation of such objects.
Originally posted by TurkeyBurgers
Here is what I do not get. Scientists say that a singularity existed before the big bang where all matter and energy was compacted into this super concentrated form.
How is that different from a black hole? Is a black hole not a super compaction of matter/energy? Gravity compacting matter so tightly together that it pulls itself into a singularity?
I just do not get it. If all matter/energy WAS compacted into a singularity before the big bang it would BE a black hole right? So there would BE no matter to expand in a Big Bang at all? How extremely far off and wrong am I on this lol.
The Big Bang singularity is a point of zero volume, but very high mass, which makes the density infinite. This singularity contained all of the matter and energy in the Universe. The initial moment of the cyclopean explosion very well remains a mystery — however, astronomers and physicists believe that after the tiniest fraction of a second, the strong nuclear force and the electromagnetic force separated, which probably caused the Universe to begin inflating. The Big Bang itself created space, time, and all of the matter and energy we know today.
Black hole singularities are created after the core of a very massive star collapses beyond an imaginary sphere called the event horizon. Since these singularities are infinitesimally small, they possess infinite density.
The differences are that black hole singularities, of course, do not contain all of the matter and energy in the Universe because there are so many of them. There was only one Big Bang singularity, and it contained the whole Universe. Another difference is that space and time were born from the Big Bang singularity, and black holes actually stretches out space to the point where it probably rips the fabric of space-time, and ends time altogether.
According to Stephen W. Hawking, singularities either occur entirely in the future or entirely in the past. In this case, black hole singularities always lie in the future (if you were to go near one, your time will come to an end), and the Big Bang singularity always lie in the past (if you were able to rewind time, galaxies will become closer together, eventually coming together at a point).
Originally posted by Eitimzevinten
reply to post by constantwonder
How can you have density (measured by dividing by zero noless) yet no effect on "space-time"? The special provision of making space-time only applicable after it makes sense in the beginning of the universe is a farse.
Something of no volume can't expand. It has NO VOLUME to expand. You can't have mass without volume and then project a density. No equation can make sense of that especially if you put it in the context of space-time which didn't "exist" at that point.
So a hot dense bunch of mass exploded to create matter, time and the volume of which the two aforementioned items would reign. If there was no volume for it to explode from, where was all this mass prior to the big bang, in another dimension (que string theory speculation)?
Things don't just randomly explode out of nothing. The universe isn't a season 4 episode of aqua-teen hunger force.