wait u dun slp im typing
Added on September 7, 2010, 2:42 amQUOTE(Shah_15 @ Sep 7 2010, 03:13 AM)
thanks for all of your comments although some of it is too complex for me to understand however why energy cannot be created? can someone explain?
owh i'm afraid that there is no other explanation other than mass-energy conversion.
mass=energy,
and they can be inter-converted.
to create energy, you need mass.
to say create is not the appropriate word.
in nuclear fusion, fission or antimatter annihilation,
mass is converted into energy.
in accelerating a mass to the speed of light, you put in energy,
and as it gain speed, it gain mass too.
there's a theory called super string theory, under development,
states that everything that exist today, all particles, matter particles or virtual force carriers, energy, everything in this universe, originated from the same thing,
and are different manifestation of the same thing. a string.
a string that can exist in many forms, give rises to different things,
matter and energy are just two examples.
and from the big bang, we learned that things should be already there by the time.
before big bang, whether they exist, or who created them? we don't now.
matter-energy cant be created, this is the nature's way,
just like 1+1 is 2.
we make such conclusion because this is what we observed,
and nature tells us that they cant be created from nothing.
and we make laws of physics based on our observations and inferences.
in physics however, there's a limit whr we can explain things.
for example, we know mass exhibit gravitational pull , or charges exhibits electrical forces,
but why so?
we can't explain. =) hope i helped.
This post has been edited by KeNGZ: Sep 7 2010, 02:42 AM