The Evolution of the Universe John D Barrow
The Evolution of the Universe * John D. Barrow
Are You Expanding ? ? ?
There is no centre and there is no edge
A Recipe for Life helium + helium beryllium helium + beryllium carbon + helium oxygen
Why is the Universe so Big ? hydrogen helium carbon 10 billion years of alchemy 10 billion years of expansion 10 billion light years of space
The Universe is Almost Empty
The Universe contains only 1 Atom per cubic metre 1 Earth per (10 l–yr)3 1 Star per (1000 l–yr)3 7 3 1 Galaxy per (10 l–yr) 1 ‘universe’ per (1010 l–yr)3
Our Universe Is Cool T 1/size
The Sky is Dark at Night
Life-supporting Space is…. Almost empty Big and Old Dark and Cold
Habitable Universes Need Close to critical expansion Isotropic expansion Graininess level of about 5 1 part in 10
The Inflationary Universe Very early 10 -35 sec
Planck Mission Microwave Sky Map
The Spectrum of Temperature Fluctuations
A Cosmological Cornucopia Changing the visible matter density Wayne Hu Changing the dark matter density Wayne Hu
Gravitational-Wave ‘Twist’ Signature in the radiation polarisation BICEP 2, 2014
The Universe is Dusty Planck Dust Map
Chaotic Inflation
Eternal Inflation
Will the Universe Expand Forever ? ? ?
The Violent End of the Solar System
Dark energy ( ) and deviation from critical expansion ( k) Wayne Hu
Dark Energy Dominates the Universe
- Slides: 33
