Undaunted: The Forgotten Giants of the Allegheny Observatory

Undaunted: The Forgotten Giants of the Allegheny Observatory

2012 1h 2min Documentaire

Acteurs principaux

Cain Alexander
Cain Alexander
Young Samuel Langley
Kurt Bell
Self
Robert R. Bell
Josiah King
Len Caric
Harvey Childs
David Conrad
David Conrad
Narrator

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