Pierre Janssen

Photo taken by Janssen, from the [[Meudon Pierre Jules César Janssen (22 February 1824 – 23 December 1907), usually known as Jules Janssen, was a French astronomer who, along with English scientist Joseph Norman Lockyer, is credited with discovering the gaseous nature of the solar chromosphere, but there is no justification for the conclusion that he deserves credit for the co-discovery of the element helium. Provided by Wikipedia
Showing 1 - 8 results of 8 for search 'Janssen, Pierre', query time: 0.03s Refine Results
In addition to media from the THWS, media from other Bavarian libraries are also displayed.
These are marked with the "Interlibrary loan" label and can be ordered by clicking on them.
  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7
  8. 8