Pierre Janssen
French astronomer and mathematician, solar studies
French astronomer and mathematician, solar studies
1907
119 years ago — 83 years old
Scientists & Innovators
France
Born in 1824, an astronomer and mathematician contributed to the field of solar research. Developed a method for studying the solar spectrum using a spectroscope and discovered helium in the solar atmosphere. Participated in the 1868 solar eclipse expedition to India, which provided significant observations. Served as a professor and participated in various scientific societies throughout his career.
Discovered helium in the solar atmosphere
Conducted solar research using spectroscopes
Participated in solar eclipse expedition of 1868
Born in 1631, this individual made significant contributions to historiography and linguistics in Denmark. Focusing on Danish history, produced important historical texts which examined the origins and development of the Danish language. Worked as a professor and published works on grammar and vocabulary, influencing the understanding of Danish etymology. He also contributed to the study of Old Norse and its relation to contemporary languages, helping to preserve historical narratives through scholarly research.
Continue ReadingAn illustrator and poet, created distinctive works known for their surreal and whimsical style. Worked primarily in the genres of books, theater, and animated films, with a notable emphasis on gothic themes and dark humor. Gained recognition for a unique artistic approach combining detailed illustrations and poetic narratives, often exploring macabre subject matter. Published over 100 books, collaborating with various authors, and produced artwork for stage productions, including ballet. Contributed illustrations to publications such as 'The New York Times' and 'The New Yorker'.
Continue ReadingActive during the 18th century, focused on engraving and illustration. Contributed to the fields of art and design with an emphasis on decorative arts. Worked extensively for the Academy of Painting and Sculpture, holding significant influence within the art community. His engravings often depicted historical and mythological themes, showcasing the artistry of his time. Oversaw the advancement of various artistic techniques and engaged in collaborations with other artists to enhance the visual culture of France.
Continue ReadingPlayed as an attacking midfielder in professional football. Started the career at FC Basel before transferring to clubs such as SC Freiburg, and Yakin became a prominent figure in the Swiss national team. Competed in international tournaments, including UEFA European Championships and FIFA World Cup. Contributed significantly to club successes in domestic leagues and cup competitions. Transitioned to coaching after retiring from professional play.
Continue ReadingBorn in 1897, served in the Polish Army and later became a general. Participated in the Polish-Soviet War and was involved in resistance activities during World War II. Played a significant role as a commander of the First Polish Army during the liberation of Poland from German occupation. His military career continued in the post-war period, becoming a prominent figure in the Polish People's Army.
Continue ReadingAn influential figure in the German socialist movement, played a key role in founding the Social Democratic Party of Germany (SPD). Advocated for workers' rights and women's suffrage through writings and speeches. Authored seminal texts, including 'Women and Socialism,' which addressed gender equality. Served in the Reichstag, contributing to socialist policy and reform efforts in late 19th and early 20th century Germany.
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