TimeScape Model Solving Dark Energy
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Sprache:Englisch
2,99 €
inkl. gesetzl. MwSt.Beschreibung
Produktdetails
Format
ePUB
Kopierschutz
Ja
Family Sharing
Ja
Text-to-Speech
Ja
Erscheinungsdatum
31.05.2026
Verlag
The Turing AppSeitenzahl
(Printausgabe)
Dateigröße
3138 KB
Sprache
Englisch
EAN
9798235477858
This book is a Weekend Pocketbook on Everything You Should Know About the Timescape Model, a bold alternative to dark energy and the standard story of cosmic acceleration. Written in everyday language, we explore the possibility that the universe may not be speeding up because of a mysterious invisible force, but because time itself flows differently across cosmic structures.
What if dark energy is not a substance at all, but an illusion created by the uneven universe we actually live in? We begin with the 1998 discovery that Type Ia supernovae appeared dimmer than expected, suggesting that cosmic expansion was accelerating. This led scientists to revive Einstein's cosmological constant and build the lambda cold dark matter model (Lambda-CDM), where dark energy makes up most of the universe.
We then ask why this standard model, despite its success, still leaves scientists uneasy. It explains the cosmic microwave background (CMB), large-scale structure, and Big Bang nucleosynthesis, but it also faces puzzles such as the Hubble tension and questions about whether the universe is truly smooth on the largest scales.
From there, we explore the Timescape model, introduced by physicist David Wiltshire. Instead of treating the universe as perfectly uniform, Timescape takes its lumps seriously: vast voids, dense clusters, and regions where gravity changes how clocks tick. Could these "cosmic time zones" make expansion look accelerated, even without dark energy?
Is dark energy the universe's greatest mystery, or have we mistaken the uneven flow of time for a force that was never there?
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