The 4th Dimension in Relativity isn't Time - it's Space.
Our reality is a 3 + 1 pseudo-Riemannian spacetime manifold whose intrinsic curvature manifests itself as gravity, right? Well no, because descriptions are not reality, and math is not physics. Indeed, when taken at its most literal, face-value, what the "fourth dimension" in relativity actually describes is a very far cry from what most modern science communicators would have you believe. Join us to discover the implications of how doing actual physics, and not just math, can lead to better understanding of the relativistic puzzle -- as well as open up some exciting new theoretical possibilities.
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Links for learning the math of General Relativity:
Metric Tensor Playlist: • The Metric Tensor
Differential Geometry: • Differential Geometry
Learn More About the River Model:
• The River Model of General Relativity
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