Chasing Venus lecture series, Part 3: The American Expeditions of 1874 and 1882

"The American Expeditions of 1874 and 1882", Steven J. Dick, NASA Chief Historian, National Aeronautics and Space Administration, Washington, DC.

Chapter 1 - Introduction, Ron Brashear, Chasing Venus Curator 0:01
Chapter 2 - Transit of Venus Visibility 2004 05:06
Chapter 3 - The Importance of Transit of Venus 09:01
Chapter 4 - Why Does the Transit Occur? 11:08
Chapter 5 - Historic Events of the Transit 15:26
Chapter 6 - American Expeditions 17:45
Chapter 7 - Technologies Used to Observe the Transit 21:40
Chapter 8 - American Transit of Venus Parties,1874 29:48
Chapter 9 - Methods used in Measuring the Transit 31:20
Chapter 10 - Question & Answer 43:40

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