B Can you explain GR without math?

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Explaining General Relativity (GR) without math is challenging, as key concepts like spacetime curvature and the relationship between mass, energy, and momentum are inherently mathematical. The FLRW model describes the universe's expansion within the framework of GR, where spacetime can be curved while spatial slices may appear flat. Both mass and energy, along with momentum and pressure, influence spacetime curvature, but the exact ratios require mathematical formulation. The concept of critical density is crucial in cosmology, particularly regarding the mass-energy content of the universe, including limits on neutrino mass. Ultimately, while simplified explanations exist, a comprehensive understanding of GR necessitates familiarity with its mathematical foundations.
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alba said:
how do you manage T? can you help me understand how it works showing how you apply it to Earth's gravitational field = 980 cm/s^2?

This is going beyond what can usefully be addressed in a PF thread. You need to consult a GR textbook. (Even before you do that, you probably need a good grounding in Newtonian physics and Newtonian gravity.)

This thread has gone as far as it can usefully go. Thread closed.
 
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