The Universe Could Be Rotating

Einstein’s general relativity is our most validated theory of the universe, explaining its origins and fate. A major prediction of the theory is the universe's expansion, observable through the redshift of light from distant galaxies, caused by the Doppler effect. This expansion suggests the universe is curved in time, with its spatial dimensions growing while time remains constant. The rate of expansion indicates whether the universe is open, closed, or flat; current measurements show a flat universe, raising the “fine-tuning” problem about why expansion and gravity are so balanced.

The Cosmic Microwave Background (CMB), the universe’s oldest light, reveals correlations that present the “horizon problem,” as distant regions of the sky show unexpected similarities. While the universe does not appear to rotate, some theories allow for rotating or time-twisting universes, like Kurt Gödel’s model, which permits time travel but does not match our universe’s expanding nature.

The debate over a rotating universe ties back to Newton’s bucket experiment, where a spinning bucket of water demonstrates a concave surface. Newton argued this proved a preferred state of motion in space, while Ernst Mach suggested matter influences motion directly. Einstein initially supported Mach’s principle but later rejected it, proposing that space-time itself creates a natural frame of reference, aligning with the matter in the universe.

Einstein’s theory diverges from Mach’s, treating space and time as real entities that can exist without matter, unlike Mach’s view of space as dependent on matter. Gödel’s and other rotational universe models suggest possibilities allowed by Einstein’s equations but may not reflect physical reality. Theories like quantum gravity might refine these ideas, addressing unresolved questions about the universe’s structure and properties.

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#AHDocumentary #universe #cosmology #universeexpansion #expandinguniverse #cosmology #cosmicmicrowavebackground #gravity #space #spacetime #spacetimecontinuum

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[apollo-rz]

If the universe was spiral, then light might follow a spiral path analogous to a wound-up spool of cotton, this would considerably change the notions of cosmic distances, and the age of the universe. Or rather a conical spiral, e.g. a nautilus shell.