- #1
DivineNathicana
- 57
- 0
If string theory is based mainly on Minkowsi "flat" spacetime, then how do they account for the proven curvature of our spacetime?
Thanks to all,
- Alisa
Thanks to all,
- Alisa
If the curvature of GR is a metaphor, then wouldn't special relativity also be a metaphor, for the same reasons? If the GR curvature of spacetime is a metaphor of the density of graviton interactions, then wouldn't the SR effects also be a metaphor of some other kind of particle interactions that accelerate the particles? This would erase lorentz invariance of things like world sheets, right? So.. if lorentz invariance is valid, then SR is valid, and GR is valid for the same reasons, right?selfAdjoint said:The direct answer to Divine N's question, how do the string theorists deal with the proven curvature of spacetime is that they don't; they deny it. Weinberg famously called it just a metaphor.
The string idea is that the graviton, a particle which their theory predicts, acts on matter in a way that mimics the Einstein curvature, without requiring that curvature to exist. So they say (but it has been contradicted ) that you can't tell whether spacetime curves or that matter is exchanging gravitons.
selfAdjoint said:... So they say (but it has been contradicted ) that you can't tell whether spacetime curves or that matter is exchanging gravitons.
selfAdjoint said:The direct answer to Divine N's question, how do the string theorists deal with the proven curvature of spacetime is that they don't; they deny it. Weinberg famously called it just a metaphor.
...
DivineNathicana said:If string theory is based mainly on Minkowsi "flat" spacetime, then how do they account for the proven curvature of our spacetime?
Thanks to all,
- Alisa
DivineNathicana said:If string theory is based mainly on Minkowsi "flat" spacetime, then how do they account for the proven curvature of our spacetime?
Thanks to all,
- Alisa
Strings are a theoretical concept in physics that describes the fundamental building blocks of the universe. They are one-dimensional objects that vibrate at different frequencies, giving rise to particles and forces. Einstein's Spacetime is a theory that combines space and time into a single entity, describing how objects move through the universe.
Strings and Einstein's Spacetime are both theories that attempt to explain the fundamental nature of the universe. Strings describe the behavior of particles and forces at a quantum level, while Einstein's Spacetime describes the behavior of objects at a macroscopic level. Some physicists believe that strings are the underlying structure of Einstein's Spacetime.
Strings and Einstein's Spacetime are important theories in modern physics because they attempt to unify the fundamental forces of the universe, namely gravity and the other three forces (electromagnetism, strong nuclear, and weak nuclear). They also provide a framework for understanding the behavior of particles and objects at both a quantum and macroscopic level.
String theory and Einstein's Spacetime are still active areas of research in physics. While there is a lot of evidence to support the theories, there are also many unanswered questions and challenges that need to be addressed. Scientists are currently working on developing new experiments and mathematical models to test and refine these theories.
While there are currently no direct applications of strings and Einstein's Spacetime, the understanding gained from these theories could potentially lead to advancements in areas such as quantum computing, space travel, and understanding the origins of the universe. However, more research and developments are needed before these theories can have practical applications.