String theory and the M theory?

Thread starter Nick V
Start date Jan 26, 2015
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M theory Quantum mechanics String String theory Theory

In summary, string theory is a theoretical framework that proposes tiny strings as the fundamental building blocks of matter. The M theory is a candidate for a unified theory of physics, combining five versions of string theory. String theory explains gravity as the curvature of space-time caused by massive objects. While there is no direct empirical evidence for string theory, some predictions have been indirectly supported. If proven correct, string theory could revolutionize our understanding of the universe and potentially have practical applications.

Jan 26, 2015

Nick V

In string theory/M theory, there are two types of strings, open and closed strings. What kind of strings are fermions(electrons, quarks) made out of? Closed or open strings?

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Jan 26, 2015

jedishrfu

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From the book The Trouble with Physics by Lee Smolin, the ends of open strings can represent charged particles and closed ones can represent the graviton. See page 106.

Related to String theory and the M theory?

1. What is string theory?

String theory is a theoretical framework in physics that attempts to explain the fundamental nature of particles and their interactions. It proposes that the smallest building blocks of matter are not point-like particles, but tiny strings that vibrate at different frequencies.

2. What is the M theory?

The M theory is a proposed unified theory of physics that combines the five different versions of string theory into one comprehensive framework. It is still a work in progress and is considered a candidate for the elusive theory of everything.

3. How does string theory explain gravity?

String theory explains gravity as a result of the curvature of space-time caused by the presence of massive objects. In this theory, gravity is not a force between masses, but rather the manifestation of the warping of space and time caused by the presence of matter and energy.

4. Is there any empirical evidence for string theory?

Currently, there is no direct empirical evidence for string theory. However, some of its predictions, such as the existence of extra dimensions, have been indirectly supported by experiments, and the theory remains a subject of ongoing research and debate.

5. What are the potential implications of string theory?

If string theory is proven to be correct, it would revolutionize our understanding of the universe and provide a complete framework for all fundamental forces and particles. It could also potentially lead to practical applications, such as the development of advanced technologies and new energy sources.