Undaunted: The Forgotten Giants of the Allegheny Observatory (2012)

Name: Undaunted: The Forgotten Giants of the Allegheny Observatory - UNDAUNTED: The Forgotten Giants of the Allegheny Observatory | IMDb
Uploaded: 2013-12-21T18:34:19Z
Duration: 4 min 23 s
Description: UNDAUNTED: The Forgotten Giants of the Allegheny Observatory tells the surprising untold stories behind the invention of mechanical flight and the founding of astrophysics.

TV-PG | Documentary

UNDAUNTED: The Forgotten Giants of the Allegheny Observatory

UNDAUNTED: The Forgotten Giants of the Allegheny Observatory tells the surprising untold stories behind the invention of mechanical flight and the founding of astrophysics.