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richerrich
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Can we say that each subatomic particle affects space time such that collectively as big as a planet it explains why there is gravity?
Thank you very much.
Thank you very much.
Nabeshin said:Well, to the big question you're asking the answer obviously has to be yes. Each individual particle does curve spacetime according to general relativity, having its own "gravitational field", and we know the net effect is that of a macroscopic object. You have to be careful in thinking about how you would actually do such a computation. The field equations of GR are not linear (in contrast to, say, the field equations for electromagnetism), so you cannot simply "add" the spacetime curvatures from all the different elementary particles and recover what we know to be the curvature for an object like the earth. Instead, you have to actually consider the system of 10^50 or however many particles you want in the stress energy tensor and then proceed to solve the einstein equations (a tall task indeed!).
But schematically, yes what you're saying is correct, just note that gravity is not an emergent phenomenon but does exist on the smaller scales as well.
richerrich said:Then why is there a need for graviton?
George Jones said:It is though that quantum theory applies to everything, but we do not have a quantum theory of gravity. A quantum theory of gravity probably will use gravitons.
richerrich said:So graviton should exist because Einstein can't explain Quantum Mechanics?
richerrich said:So graviton should exist because Einstein can't explain Quantum Mechanics?
Kevin_Axion said:Massive bodies emit gravitons to tell spacetime how to curve through the stress-energy tensor.
Kevin_Axion said:Hypothetically, right now Einstein's General Theory of Relativity states that mass and energy tell the stress-energy tensor how to curve spacetime, the graviton just appears logical because all other forces have bosonic carriers.
Subatomic particles are tiny particles that make up atoms. They include protons, neutrons, and electrons, which are the building blocks of matter. There are also other subatomic particles, such as quarks and leptons, that are important in understanding the structure of matter.
According to the theory of general relativity, mass and energy can cause a curvature in the fabric of space-time. As subatomic particles have mass and energy, they can contribute to this curvature. This means that the presence of subatomic particles can affect the way objects move through space and time.
Subatomic particles play a crucial role in understanding the universe. They are the building blocks of matter and can help us understand how particles interact and form larger structures, such as atoms and molecules. Studying subatomic particles can also provide insights into the fundamental forces that govern the universe.
Scientists study subatomic particles using high-energy particle accelerators and detectors. These tools allow them to create and observe subatomic particles in controlled environments. They also use theoretical models and mathematical equations to make predictions and understand the behavior of subatomic particles.
Yes, subatomic particles have many practical applications. For example, they are used in medical imaging techniques, such as PET scans, and in nuclear power plants to generate energy. Scientists are also studying how to use subatomic particles in advanced technologies, such as quantum computing.