matter?why not energy?
2006-08-30 21:39:27 · 10 answers · asked by sage of saigon 2 in Science & Mathematics ➔ Physics
actually the Big Bang is a so-called "singularity", which means that the equations (those of Einstein's General Relativity) break down at that point, and tell us nothing. The same happens with a black hole, according to General Relativity it should shrink down to a (mathematical) point of infinite density, but from a physical point of view this seems very unlikely.
anyway, the day we have a theory that can handle this, i.e. can handle gravitation on a very small scale (sometimes called "quantum gravitational theory"), then we get to your question.
and yes you're right, you can start with a point of concentrated energy, or matter - both are the same thing. Even in today's Big Bang model, no one said it started with a point of concentrated MATTER ;-)
hope this helps
a
2006-08-30 21:50:26 · answer #1 · answered by AntoineBachmann 5 · 0⤊ 0⤋
Sage of Saigon,
You are right, the big bang could have started from a point of pure energy. it is also logical because, the mass speeding away from the bang, if from a point of concentrated mass, would theoretically be moving faster than light (think of the pressure generated when infinite mass is packed into an infenitiesmally small point. If it were energy, the riddle would be easier to understand, because, the energy's conversion to mass means that a major part of the energy is transformed too and thus the speed of expansion is dramatically reduced. I've working on this problem for the last two years and have already written to Prof. Hawking about it... I didn't get a reply though... I'll keep you informed about the result of my work...
2006-08-31 04:55:59 · answer #2 · answered by andalite_friends 2 · 0⤊ 0⤋
It is only an assumption that big bang started from a single point. and the objects are moving away from the point. Recently it was proved that it was not so.
To answer the question the mass came into existence when energy got converted to mass . ( Energy is lighter than mass )
As the mass grew it started attracting more towards itself and thereby converting more energy to mass. A point reached where there was no more energy left with the gravitational pull of the object to change to mass.
The mass became so dense that it start collapsing on itself till it reached a "point". The gravity was so intense that nothing could escape and it ended as a super black hole.
When the black hole exceeded its critical mass it became unstable and the big bang happened.
In fact theoretically there could have many super black holes
which underwent a similar fate.
Some are beginning to form super black holes while some are bursting like pop corns. A cosmic convection in process !
2006-08-31 05:09:29 · answer #3 · answered by babdi_26 1 · 0⤊ 0⤋
String Theory is how this question will eventually be resolved. Basically, String Theory states that everything is composed of vibrating "strings" of energy. In pursuing this theory in college, I was amazed at how well it seems to answer some of the most difficult questions asked about time and space, and yet there is no definitive proof of string theory. It is gaining wider acceptance, as more and more scientists learn more about it.
The Big Bang Theory doesn't say anything about concentrated mass. It is easily found if you plug in Big Bang Theory on the Internet.
2006-09-05 11:56:02 · answer #4 · answered by nammy_410 2 · 0⤊ 0⤋
as i understand the big bang, it was a point of concentrated energy and after the bang the energy cooled and converted to mass
2006-08-31 04:51:48 · answer #5 · answered by oldguy 6 · 0⤊ 0⤋
Nobody ever said that the bigbang started from a point of concentrated matter. On contrary, those who believe in the bigbang-theory (I don't), expressively state that it started from a sort of energy-status they, of course, can't define, because it must have been so dense (towards infinity), that no laws of nowadays know physics can be applied.
2006-08-31 05:17:36 · answer #6 · answered by jhstha 4 · 0⤊ 0⤋
It is explained like that. But who saw the bigbang?
Since it is easy to consider formation of mass from another massive body than formation of mass from energy. That's why.
Do you give some example of conversion of energy to mass?
But conversion of mass into energy has got some example.
Like formation of nuclei from protons and neutrons, nuclear fission, nuclear fusion etc.
2006-08-31 04:49:04 · answer #7 · answered by dinu 3 · 0⤊ 0⤋
who was there to check ?
somebody called "einstein"!
first - not all could understand it;
then he started spinning some super-string theory!!
next as third step - he would be coining--- some other more COMPLEX theory;
so common factor is - he is a COMPLEX personality, who has lost his HOME and in addition his memories...........
hence, moral of the THEORY-
we should use all the mass & energy in concentrated way to make this earth more beautiful; since it was full of of beauty in the beginning.............
still, you want to bang your head; its your LUCK if wall is not BIG and hard enough..........
after all - its your choice......
many-ques!!!
2006-09-08 02:05:03 · answer #8 · answered by many-ques!!! 2 · 0⤊ 0⤋
one theory seys that before big bang energy changed into mass then big bang started.
2006-08-31 04:52:20 · answer #9 · answered by merdad b 2 · 0⤊ 0⤋
It's what made you, You.
BANG! OH! He GOT may!
2006-09-06 23:52:52 · answer #10 · answered by thewordofgodisjesus 5 · 0⤊ 0⤋