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Big Bang, Black Holes & Gravitational Waves by Abhay Ashtekar
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- 1 Date: 21 August 2019, 16:00 to
- 2 Introduction
- 3 Introduction to Speaker
- 4 Big Bang, Black Holes and Gravitational Waves Illustrations of Paradigm Shifts in Fundamental Science
- 5 Setting the stage: The goal of this talk
- 6 Space, Time and Gravity
- 7 Gravity fuses with Space-Time Geometry
- 8 Discovery of General Relativity
- 9 On General Relativity
- 10 Side Remark: But does it matter in practical terms?
- 11 Organization
- 12 2. Cosmology Application of GR to the Universe As a Whole
- 13 The Issue of the Beginning: Curious History
- 14 The Big Bang: Twists and Turns
- 15 A Paradigm Shift
- 16 Cosmic Microwave Background
- 17 COBE & WMAP Image Credits: NASA
- 18 Planck Satellite launched 2009
- 19 Organization: Warping of space-time & Black Holes
- 20 Black Holes: End of Space & Time
- 21 Our Own Black Hole: sgr A*
- 22 Amazingly, predictions appeared over 230 years ago! Based on Newton's law of Gravitation
- 23 Curious History of Black Holes in GR
- 24 Prominent Examples of the reluctance
- 25 Now: BHs routinely invoked as engines driving the most energetic explosions in the universe
- 26 Ripples on space-time: Gravitational waves
- 27 Gravitational Waves: Curious History
- 28 Resolution of the confusion
- 29 Novel Cosmic Messengers
- 30 Direct detections on earth: Triumph of Human ingenuity.
- 31 Summary
- 32 Lessons
- 33 Q&A
