Description: On January 24, 1925, for the first time in over a century, a total solar eclipse would be visible across the northern part of the United States. How scientists used a dirigible to observe the phenomenon.
Description: Link Love: a weekly post with links to interesting videos and stories about archival issues, technology and culture, and Washington D.C. and American history.
Showing results 37 - 40 of 40 for Smithsonian Astrophysical Observatory. Earth Physics Satellite