
#1
Sep2104, 01:52 PM

P: 150

hi just tinkering around with the idea of antigravity and i think i came up with something disproving it's possible, i cant explain right now (homeowrk) but i need to know if anyone has any ideas on how to break einsteins theory that matter cannot be created or destroyed. is there any way to create matter from nothing?
know it sounds ridiculous Adam P.S. my other post http://www.physicsforums.com/showthr...pid+crazy+guys 



#2
Sep2104, 07:04 PM

P: 582

My friend, if anyone could "break" Einstein's theory, he or she would be browsing through the Nobel Prize Laureates forum, not this one.




#3
Sep2104, 07:11 PM

P: 150

but what bout the big bang , matter had to come from somthing somwhere down the timeline Adam 



#4
Sep2104, 07:40 PM

Math
Emeritus
Sci Advisor
Thanks
PF Gold
P: 38,904

idea of antigravity
I'm wondering what you mean by "Einstein's theory that matter cannot be destroyed"!
It was Einstein that showed that matter can be converted to and from energy. The "law of conservation of matterenergy" is a lot older and bigger than Einstein. 



#5
Sep2104, 07:41 PM

P: 582

Hmm, yes, these are the greatest of the numerous unsolved mysteries in physics.




#6
Sep2104, 08:11 PM

Mentor
P: 7,292

Sorry, I see no possibility of this turning into a discussion of accepted Physics.




#7
Sep2204, 12:20 AM

P: 150

ok nm then




#8
Sep2204, 06:56 AM

P: 123

But what do I know ?? Keep on chuggin !! Vern 



#9
Sep2204, 05:28 PM

P: 150

Adam P.S. I sent u a private message on a reply, don know if u got it 



#10
Sep2204, 07:17 PM

P: 32

Big Bang violates many laws in physics. It is something that comes from nothing. This obviously implies that matter and energy can be created. How is it that many acclaimed scientists believe in something that gives rise to so many contradictions, yet is readily overlooked?
Question: How did the big bang create spacetime? I'm with Vern; What do I know also? 



#11
Sep2204, 08:02 PM

Sci Advisor
PF Gold
P: 9,186

Something from nothing? Whatever made you think the universe is something? It is a quantum collection of somethings whose total is ...nothing. A favorite quote of mine on this subject:
"The answer is that the total energy of the universe is exactly zero. The matter in the universe is made out of positive energy. However, the matter is all attracting itself by gravity. Two pieces of matter that are close to each other have less energy than the same two pieces a long way apart, because you have to expend energy to separate them against the gravitational force that is pulling them together. Thus, in a sense, the gravitational field has negative energy. In the case of a universe that is approximately uniform in space, one can show that this negative gravitational energy exactly cancels the positive energy represented by the matter. So the total energy of the universe is zero." (Stephen Hawking, A Brief History of Time) 



#12
Sep2204, 10:00 PM

Mentor
P: 22,010

Guys, you are wrong about the BBT because you don't even understand what it says, much less what that means. Before you can prove it wrong, you have to learn what it is.




#13
Sep2204, 11:11 PM

P: 150

Adam 



#14
Sep2304, 12:11 AM

P: 148

That's really a cool exerpt chronos... where did u ge it from? And russ know nywhere where we can get info BBT?




#15
Sep2304, 02:44 AM

Sci Advisor
PF Gold
P: 9,186

Stephen Hawking. The point is the universe is full of things that add up to zero. This is entirely consistent with quantum theory. It also agrees with GR. If you guys want more detail on that, I will give you links to papers by people who know far more that I do. I barely grasp the basics. Most true scientists agree the universe is a mystery.
To clarify for Arsonade, the principles we have discovered do not violate the apparent laws governing reality. The laws of thermodynamics do not forbid our existence. They only insist upon a balancing force. 



#16
Sep2304, 06:35 AM

P: 1,443

If gravity is a force, then antigravity is the antiforce. If gravity has a positive direction with respect to a coordinate system then the antigravity has a negative direction. But gravity is a central force and also a conservative force which does not depend on the path. This seems to imply that gravity is the antiforce of itself.
This is due to the fact that all coordinate systems must be used when formulating a complete physical theory. But because of underlying symmetries, we were used to ignore all but the righthanded system of coordinates. When all frames of reference are used, it is necessary to attribute the properties of directional invariance. These properties can only make sense at the local infinitesimal region of spacetime. 



#17
Sep2304, 05:45 PM

P: 150

so theres an antiarsonade somewhere out there? lol im jus kiddi, so that meens that for every photon of light there is a and for every watt of electriciy there is a  or am i misunderstanding?
Adam 



#18
Sep2304, 05:50 PM

P: 1,443




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