Undaunted: The Forgotten Giants of the Allegheny Observatory 2012 film complet
This film tells the surprising story of how the Allegheny Observatory has been a world leader in the study of the stars since the 1860s. Self-educated, and often facing unrelenting hardships, the people associated with the Allegheny Observatory defied the odds to make enormous contributions to the founding of astrophysics and early aviation.
Avec
, Dan Handley , , Dan Handley , , , Kurt Bell , , Len Caric ,
