_http://tinyurl.com/9tvtqn6_ (http://tinyurl.com/9tvtqn6)

First few paragraphs

"

A pair of mathematicians -- one from Indiana University and the other from

_Sichuan University_

(http://maps.google.com/maps?ll=30.63016,104.09001&spn=1.0,1.0&q=30.63016,104.09001 (Sichuan%20University)&t=h) in China -- have

proposed a unified theory of dark matter and _dark energy_

(http://www.dailygalaxy.com/my_weblog/2012/06/evolution-of-dark-matter-in-the-observable-unive

rse-video.html) that alters _Einstein's equations_

(http://en.wikipedia.org/wiki/Einstein_field_equations) describing the fundamentals of gravity.

"In a nutshell, we believe that new gravity theory will change our view on

energy, gravitational interactions, and the structure and formation of our

universe," said Shouhong Wang, a professor of mathematics at Indiana

University.

Wang and Tian Ma, a professor at Sichuan University, suggest the law of

energy and _momentum conservation_ (http://en.wikipedia.org/wiki/Momentum) in

spacetime is valid only when normal matter, dark matter and dark energy

are all taken into account. For normal matter alone, energy and momentum are

no longer conserved, they argue.

While still employing the metric of _curved spacetime_

(http://en.wikipedia.org/wiki/General_relativity) that Einstein used in his field equations,

the researchers argue the presence of dark matter and dark energy -- which

scientists believe accounts for at least 95 percent of the universe --

requires a new set of gravitational field equations that take into account a new

type of energy caused by the non-uniform distribution of matter in the

universe. This new energy can be both positive and negative, and the total over

spacetime is conserved, Wang said.

It is curved spacetime, along with a new scalar potential field

representing the new energy density, and the interactions between the two that form

the foundation for the new gravitational field equations.

"Many people have come up with different theories for dark energy," Wang

said. "Unfortunately, the mystery remains, and in fact, the nature of dark

energy is now perhaps the most profound mystery in cosmology and

astrophysics. It is considered the most outstanding problem in theoretical physics.

"The other great mystery concerning our universe is that it contains much

more matter than can be accounted for in our visible stars. The missing mass

is termed as dark matter, and despite many attempts at detecting dark

matter, the mystery remains and even deepens."

The researchers postulate that the _energy-momentum tensor_

(http://en.wikipedia.org/wiki/Stress%e2%80%93energy_tensor) of normal matter is no longer

conserved and that new gravitational field equations follow from Einstein's

principles of equivalence and general relativity, and the principle of _Lagrangian

dynamics_ (http://en.wikipedia.org/wiki/Lagrangian_mechanics) , just as

Einstein derived his field equations. Wang said the new equations were the

unique outcome of the non-conservation of the energy-momentum tensor of normal

matter."

Chris

(I reject your reality and substitute my own)

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