Germinal Pierre Dandelin
Mathematician; Dandelin Spheres in Geometry
Born
Died
Category
Thinkers & Philosophers
Country
Belgium
Links & References
Contributed significantly to mathematics and engineering, particularly in the field of geometry. Developed the Dandelin spheres, which provide a geometrical proof of the relationship between conic sections and ellipses. Engaged in research involving the properties of geometric figures and their applications in engineering. Published works that influenced the understanding of conic sections and their properties.
Developed Dandelin spheres for conic sections
Published research in geometry and engineering
Other People Born on April 12th
George N. Briggs
American politician, 19th Governor of Massachusetts
Born
April 12th, 1796 230 years ago
Died
1861 165 years ago — 65 years old
Served as the 19th Governor of Massachusetts from 1843 to 1844. Held the position during a time of political transition in the state. Prior to governorship, engaged in legal practice and served in the Massachusetts State Legislature. Participated in shaping state policies and legislation. Known for addressing issues related to public education and infrastructure.
Continue ReadingLisa Jardine
Historian and author of several works
Born
April 12th, 1944 82 years ago
Died
October 25th, 2015 10 years ago — 71 years old
An English historian, author, and academic focused on the history of science and its intersection with culture. Contributed significantly to discussions on the role of women in science. Served as a professor of Renaissance Studies at University College London and directed the Human Renaissance project. Published various works, including 'Ingenious Pursuits: Building the Scientific Revolution' and 'Going Dutch: How England Plundered Holland's Glory'. Held the position of chair for the Royal Commission on Historical Manuscripts.
Continue ReadingCaffarelli
Italian actor and singer
Born
April 12th, 1710 316 years ago
Died
1783 243 years ago — 73 years old
Active during the 18th century, this individual gained recognition in the fields of opera and singing. Notable for performing in various operas, particularly in works by renowned composers such as Handel and Porpora. Achieved acclaim for both vocal prowess and stage presence. This individual was primarily associated with Italian opera and performed in prestigious venues across Europe. Contributions included a significant impact on the development of opera seria, influencing both contemporary and future performers.
Continue ReadingHiroki Sakai
Japanese footballer, World Cup competitor
Born
April 12th, 1990 36 years ago
Professional footballer played primarily as a right back. Started career with the J. League club Gamba Osaka, where he won the 2008 J. League Youth Cup. Moved to Europe, joining the French club Montpellier in 2015, contributing to their strong defensive line. Transferred to Marseille in 2016, becoming a regular starter and aiding the team in multiple domestic campaigns. Represented Japan at the international level, participating in the 2018 FIFA World Cup and gaining notable experience in international competitions. Contributed to the national team's qualification efforts for various tournaments.
Continue ReadingTom Clancy
American author of military thrillers
Born
April 12th, 1947 79 years ago
Died
November 7th, 1990 35 years ago — 43 years old
Born in 1947, this author specialized in military and espionage fiction. The debut novel, 'The Hunt for Red October', was published in 1984 and gained significant acclaim for its detailed portrayal of military scenarios and technology. This work led to a successful career as a novelist, resulting in several best-selling titles. The author's intricate plots often integrated real-world events, showcasing a deep understanding of geopolitical dynamics. In addition to novels, contributions to video games and movies established a legacy in popular culture.
Continue ReadingJoschka Fischer
German politician and former Foreign Minister
Born
April 12th, 1948 78 years ago
Born in 1948, this individual served as the Foreign Minister of Germany from 1998 to 2005 and played a significant role in the country's European and foreign policy during that time. Holding a pivotal position in the Green Party, he contributed to the party's increasing influence in German politics throughout the 1990s and early 2000s. This individual was also a key figure in advocating for environmental issues and progressive social policies. After leaving official office, remained active in academia and public debate, sharing insights on international relations and EU policies.
Continue ReadingOther People Who Died on February 15th
P.J. O'Rourke
Humorist and journalist, wrote 'Parliament of Whores'
Born
1947 79 years ago
Died
February 15th, 2022 4 years ago — 75 years old
A prominent American author and humorist, contributed significantly to political commentary through satire. Wrote extensively for publications such as National Lampoon and The Weekly Standard. Authored books exploring political and social issues with a humorous lens, with 'Parliament of Whores' highlighting the absurdities of American politics. Worked as a foreign correspondent, offering insights into international affairs with a comedic twist. O'Rourke's style and perspective garnered a dedicated readership, making him a significant voice in contemporary humor.
Continue ReadingStuart McLean
Canadian radio broadcaster and storyteller
Born
1948 78 years ago
Died
February 15th, 2017 9 years ago — 69 years old
A Canadian radio broadcaster and storyteller, contributed significantly to public radio through a long-running program featuring storytelling and music. Hosted 'The Vinyl Cafe' which aired for over two decades, showcasing humorous and heartfelt tales that resonated with audiences. The show became an integral part of Canadian culture, often featuring both fictional characters and real-life guests. McLean's work extended beyond broadcasting, including published books that compiled stories from the program, further establishing his voice in contemporary Canadian literature.
Continue ReadingThelma Estrin
Computer Scientist and Engineer
Born
February 21st, 1924 102 years ago
Died
February 15th, 2014 12 years ago — 89 years old
A prominent computer scientist and engineer, contributions focused on medical applications of computing. Pioneered the development of medical computer systems and advanced techniques in biomedical engineering. Played a key role at the University of California, Los Angeles, and significantly influenced the field through research and innovation in health informatics.
Continue ReadingPierre Bachelet
French singer-songwriter with hit songs
Born
May 25th, 1944 82 years ago
Died
February 15th, 2005 21 years ago — 60 years old
A prominent figure in French music, gained popularity in the 1970s and 1980s. Best recognized for romantic ballads, particularly 'Les Tapes de la Vie' and 'Emmanuelle.' His lyrical style and melodic tunes resonated with audiences, making him a staple of the French chanson genre. Throughout a successful career, collaborated with various musicians and produced numerous albums. Continued to write and perform until the late stages of life, maintaining a loyal fan base.
Continue ReadingDimitrie Ghica
Romanian lawyer and Prime Minister
Born
1816 210 years ago
Died
February 15th, 1897 129 years ago — 81 years old
Served as the 10th Prime Minister of Romania from 1866 to 1867. Contributed to the legal framework of Romania through various reforms. Played a significant role in the political landscape during the late 19th century. Engaged in the legislative process, focusing on modernization.
Continue ReadingAngus MacLean
Canadian politician and commander
Born
May 15th, 1914 112 years ago
Died
February 15th, 2000 26 years ago — 85 years old
Served as the 25th Premier of Prince Edward Island from 1943 to 1948. Held various roles in the provincial government, including Minister of Education. Contributed to the establishment of multiple educational reforms during tenure. Involved in local politics and military service during World War II.
Continue Reading