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Topic

extra dimensions

Type
post
Author
Denyse O'Leary
Date
April 18, 2021
Categorized
Cosmology, Intelligent Design, Physics
Tagged
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Sabine Hossenfelder: Does the universe have higher dimensions?

Denyse O'Leary
April 18, 2021
Cosmology, Intelligent Design, Physics
Hossenfelder: If one adds 7 dimensions of space to our normal three dimensions, then one can describe all of the fundamental forces of nature geometrically. And that sounds like a really promising idea for a unified theory of physics. Indeed, in the early 1980s, the string theorist Edward Witten thought it was intriguing that seven additional dimensions of space is also the maximum for supergravity. However, that numerical coincidence turned out to not lead anywhere. This geometric construction of fundamental forces which is called Kaluza-Klein theory, suffers from several problems that no one has managed to solved. Read More ›
Type
post
Author
Denyse O'Leary
Date
September 16, 2018
Categorized
Cosmology, Intelligent Design, Physics
Tagged
, ,

UChicago Researchers: Those extra dimensions ain’t out there

Denyse O'Leary
September 16, 2018
Cosmology, Intelligent Design, Physics

Not if you go by results from the gravitational waves collision. While last year’s discovery of gravitational waves from colliding neutron stars was earth-shaking, it won’t add extra dimensions to our understanding of the universe—not literal ones, at least. University of Chicago astronomers found no evidence for extra spatial dimensions to the universe based on the gravitational wave data. Their research, published in the Journal of Cosmology and Astroparticle Physics, is one of many papers in the wake of the extraordinary announcement last year that LIGO had detected a neutron star collision. It appears for now that the universe has the same familiar dimensions—three in space and one of time—even on scales of a hundred million light-years. But this is Read More ›