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ASTR 160 - Frontiers and Controversies in Astrophysics

Lecture 17 - Hubble's Law and the Big Bang (cont.). Class begins with a review of magnitudes and the problem set involving magnitude equations. Implications of the Hubble Law and Hubble Diagram are discussed. Professor Bailyn elaborates on the Big Bang theory of cosmology and addresses controversial questions related to the age, development, and boundaries of the universe. The fate of the universe, and possibly its end (known as the Big Crunch) are addressed. Imagining an expanding three-dimensional universe is proposed. The lecture ends with a question-and-answer session during which students inquire about a variety of topics related to cosmology, such as the center of the universe, its current expansion, and hypothetical collapse.
(from oyc.yale.edu)

Lecture 17 - Hubble's Law and the Big Bang (cont.)

Time Lecture Chapters
[00:00:00] 1. Review of Magnitudes
[00:07:38] 2. Implications of Hubble's Discoveries on the Aging Universe
[00:26:36] 3. Conceptualizing a Three-Dimensional Universe
[00:34:22] 4. Q and A: The Big Bang, the Expansion, and the Big Crunch

References
ASTR 160: Lecture 17 - Hubble's Law and the Big Bang (cont.)
Instructor: Professor Charles Bailyn. Class Notes Lecture 17 [pdf]. Transcript [html]. Audio [mp3]. Download Video [mov].

Go to the Course Home or watch other lectures:

Lecture 01 - Introduction
Lecture 02 - Planetary Orbits
Lecture 03 - Our Solar System and the Pluto Problem
Lecture 04 - Discovering Exoplanets: Hot Jupiters
Lecture 05 - Planetary Transits
Lecture 06 - Microlensing, Astrometry and Other Methods
Lecture 07 - Direct Imaging of Exoplanets
Lecture 08 - Introduction to Black Holes
Lecture 09 - Special and General Relativity
Lecture 10 - Tests of Relativity
Lecture 11 - Special and General Relativity (cont.)
Lecture 12 - Stellar Mass Black Holes
Lecture 13 - Stellar Mass Black Holes (cont.)
Lecture 14 - Pulsars
Lecture 15 - Supermassive Black Holes
Lecture 16 - Hubble's Law and the Big Bang
Lecture 17 - Hubble's Law and the Big Bang (cont.)
Lecture 18 - Hubble's Law and the Big Bang (cont.)
Lecture 19 - Omega and the End of the Universe
Lecture 20 - Dark Matter
Lecture 21 - Dark Energy and the Accelerating Universe and the Big Rip
Lecture 22 - Supernovae
Lecture 23 - Other Constraints: The Cosmic Microwave Background
Lecture 24 - The Multiverse and Theories of Everything