A New Vision : Two-Timing Universe

For nearly a century, physicists have tried to reconcile Einstein’s vision of the universe (including three dimensions of space and one of time) with the bizarre realm of quantum physics, rife with such oddities as instant communication at a distance and being in two places at once. The effort to unify the views has resulted in a stream of elaborate hypotheses positing worlds with multiple dimensions of space, most notably string theory and its successor, M-theory.

Itzhak Bars, a theoretical physicist at the University of Southern California, thinks these hypotheses are missing a crucial ingredient: an extra dimension of time. By adding a second dimension of time and a fourth dimension of space to Einstein’s standard space-time, Bars has come up with a new model providing “additional information that remained hidden in previous formulations” of physics, including current versions of M-theory. Such a model could better explain “how nature works,” he says.

Physicists had never added a second dimension of time to their models because it opens the possibility of traveling back in time and introduces negative probabilities and other scenarios that seem nonsensical. In his equations Bars has solved these problems with a new symmetry that treats an object’s position and its momentum as interchangeable at any given instant.

Does this mean we could actually experience a second dimension of time? “Yes,” Bars says, “but only indirectly,” by thinking of the world around us as many shadows that look different depending on the perspective of the light source. “The predicted relations among the different shadows contain most of the information about the extra dimensions,” he explains. Next, Bars and his team are developing tests for two-time physics and investigating how to apply the theory to all the natural forces, including gravity. Adding two-time physics to M-theory, he says, should help us close in on “the fundamental theory that so far has eluded all of us.”

Source : Discovery Magazine

Absolute Hot versus Absolute Cold

As you know, physics is consists of constants which amazes us. Surely, you have heard about the Absolute Zero where you can't go more colder than -273,15C or -459F or 0 Kelvin. Scientists achieved to reach the coldest temperature in lab environment which is -273,149999999. So it seems that there is no way under. But what about the Absolute Hot, maximum possible temperature? The answer is both yes, no or maybe? Standard theory accepts the Planck Temperature (100 million million million million million degrees, or 1032 Kelvin) which occurred 10-43 seconds after the Big Bang got under way. At that instant, known as one Planck time, the entire universe is thought to have been the Planck length, or 10-35 meters. You can read more about this very important subject here. There is also a very interesting animation which scales the known temperature ranges. Check it here too.

Imagine: Playing with Dimensions Video

Width, Length and Height. Do you think that it is what all we have in a 3D world. How about further dimensions? How to visualize them up to tenth dimension!? An interesting science video which can hint you another undiscovered area of thinking. Here is the video



 
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