Pierre Janssen

Pierre Jules César Janssen, 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, and with some justification the element helium.

Summary from Wikipedia (CC BY-SA 4.0) · Dates from Wikidata (CC0)

Who was born first?

• Pierre Janssen and Ambrose Burnside were born the same year
• Pierre Janssen was born 1 year before Alexander Mozhaysky
• Pierre Janssen was born 1 year before Henri Giffard
• Pierre Janssen was born 1 year before Francesco Faà di Bruno
• Pierre Janssen was born 1 year after Carl Wilhelm Siemens

Timeline

1. Carl Wilhelm SiemensApril 4, 1823 – November 19, 1883
2. Ambrose BurnsideMay 23, 1824 – September 13, 1881
3. Pierre Janssen (this page)February 22, 1824 – December 23, 1907
4. Alexander MozhayskyMarch 9, 1825 – March 20, 1890
5. Francesco Faà di BrunoMarch 29, 1825 – March 27, 1888
6. Henri GiffardFebruary 8, 1825 – April 14, 1882

Related

• Albert EinsteinMarch 14, 1879 – April 18, 1955
• Leonardo da VinciApril 15, 1452 – May 2, 1519
• Galileo GalileiFebruary 15, 1564 – January 8, 1642
• Thomas EdisonFebruary 11, 1847 – October 18, 1931
• Archimedescirca 287 BC – 212 BC
• Steve JobsFebruary 24, 1955 – October 5, 2011
• Nikola TeslaJuly 10, 1856 – January 7, 1943
• Henry FordJuly 30, 1863 – April 7, 1947