Recent content by Phys988

What is the speed of propagation of an electric pulse compared to the speed of light: - In a normal copper wire. - In a superconductive wire.

So what?(maybe I did not get all your points). But anyway, I noticed that you have a small mistake, this is a cosmology forums (accurately: a physical cosmology forums), so please post your comment in a religion forum!

You believe!? The only thing you should believe here (and in any scientific forum) is the scientific theory and the assumptions and foundations of science. Regarding any other thing, in this forum, you do not say that you believe in, but you accept it. Since a theory (like the "Big Bang" theory)...

I is negative because you consider it from - to + (as you show in your paper).

Hello! I need to know whether the hard disk is on or off during the following states (in windows vista): -During Standby -During Hybrid Standby -During Hibernation Note that I mean by on that the hard disk is spinning regardless if it is reading,writing or doing nothing. Please I need...

Billionaire ! I think that pleasure is the aim of life, and it is the basic motivation that produces societies, economies, humanities, technologies … So what is the aim of being billionaire? Since having a billion dollars, will give you a similar pleasure of having 20 million dollars...

It is so Silly ! Pi is totally mathematical constant, it will not be changed with any change in the space or time or atoms or electrons ..... If physics would try to change mathematics then all physics theories will be a trash, since that special relativity and the general relativity are based...

It took him 5 years (from the time he decided to switch into physics) to receive his PhD. But that all what you could find through Google. No information whether these 5 years includes undergraduate studies or it was only for graduate studies. If it was only for graduate studies, then you can...

Pi is totally mathematical constant and has no relation with experiment; it can be computed in many ways. Check this link for more information (http://en.wikipedia.org/wiki/Computing_%CF%80). So if there is a curvature of space then the circle will have different ratio (circumference/radius)...

Physicists can not help you in answering your question; I think that Biochemists or Molecular Biologists can do that better.

So as I understood that a final theory or "The theory of Every Thing" may not be deterministic, so humans may reach in the future a theory explains every thing about the universe, but still that theory have indeterministic nature.

Why the neutral wire (the cold) does not cause an electric shock?

Is string theory deterministic? So if a supernatural mind knows all the physical information in the universe at a specific moment then he will exactly know (using string theory) what will happen in the future. If string theory is not deterministic, should the Theory of Every Thing be a...

Edward Witten is one of the world's leading researchers in superstring theory. He received his bachelor's degree in history (with a minor in linguistics) from Brandeis University, then he completed graduate studies in physics at Princeton University receiving a Ph.D. in physics in 1976. In1990...

It is my first year in university, I was wondering about the aim of a Lectures, since all the information introduced in the lectures are found in the textbook required and in the additional reference textbooks ( one or two ). It may be a stupid question, what is the aim of the University...