John Ambrose Fleming
Physicist, Inventor of the Vacuum Tube

Born
November 29th, 1849
175 years ago
Died
April 18th, 1945
80 years ago — 95 years old
Category
Scientists & Innovators
Country
United Kingdom
Links & References
Contributions to electrical engineering and physics include the invention of the vacuum tube in 1904, which facilitated the development of radio technology and electronic communication. Developed the Fleming valve, crucial for early electronic amplifiers. Held a professorship at University College London and served as president of the Institution of Electrical Engineers. Engaged in various scientific organizations, contributing to advancements in telephony and radio broadcasting.
Invented the vacuum tube in 1904
Developed the Fleming valve
Other People Born on November 29th
Nellie Tayloe Ross
Served as the 14th Governor of Wyoming from 1925 to 1927. Became the first woman to hold a governorship in the United States. Prior to this, worked as the director of the Wyoming State Liquor Commission. Held various positions within the Democratic Party and was active in state and national politics, promoting women's suffrage and other reforms.
Continue ReadingYegor Ligachyov
Born in 1920, a prominent engineer and politician. Joined the Communist Party and became a significant figure in Soviet politics. Contributed to various engineering projects and served in high-ranking positions, including the First Secretary of the Moscow City Committee. Involved in policymaking during times of considerable change in the Soviet Union. Advocated for the scientific and technological advancement of the nation. Participated in multiple influential conferences and meetings that shaped the future of Soviet industry and governance.
Continue ReadingDimitrios Konstantopoulos
A footballer specialized in the goalkeeper position, played primarily for teams in the UK and Greece. Highlighted career includes playing in the English Premier League with Middlesbrough and participating in several UEFA competitions. His career spanned over a decade, culminating in achievements in domestic leagues and cup competitions.
Continue ReadingAndy Beshear
Served as the 63rd Governor of Kentucky, taking office on December 10, 2019. Focused on education, healthcare, and infrastructure within the state. Prior to becoming governor, worked as an attorney and served as the state's Attorney General from 2016 to 2019. Established initiatives to meet the needs of Kentuckians, including efforts to expand access to healthcare and improve the economy.
Continue ReadingBarbara C. Freeman
Born in 1906, this English writer and poet crafted a literary career that spanned several decades. Notable for contributions to poetry, she published works that explored complex themes of personal and social issues. Her writing reflects a deep engagement with the nuances of human emotions and conditions. Additionally, she was involved in various literary programs and mentoring young writers during her career. Reputed for both her poetry and prose, her work remains influential in literary circles.
Continue ReadingGarry Shandling
A prominent figure in the world of comedy and television, this individual gained recognition for pioneering the modern talk show format. Created and starred in 'The Larry Sanders Show', which showcased a behind-the-scenes look at a late-night talk show and received widespread acclaim. Additionally, played a significant role in 'It's Garry Shandling's Show', further solidifying a legacy in comedic television. Contributed as a writer and performer on various projects, influencing a generation of comedians with a unique blend of humor and insight.
Continue ReadingOther People Who Died on April 18th
Marcel Pagnol
An influential figure in French literature and cinema, this author, playwright, and director made significant contributions through works that depicted rural life in Provence. The trilogy of plays, 'Marius', 'Fanny', and 'César', became foundational in the French dramatic tradition. This individual also directed films based on these works, further enhancing recognition. A passionate promoter of regional culture, the individual combined storytelling with a cinematic approach, leaving a lasting legacy in both theater and film.
Continue ReadingArturo Frondizi
Served as the 32nd President of Argentina from 1958 to 1962. Focused on economic development and modernization of the country. Implemented policies promoting industrialization and foreign investment. His government sought to balance growth with social justice while facing significant political opposition.
Continue ReadingLouis Feuillée
An astronomer, geographer, and botanist, contributed to the understanding of the southern hemisphere's flora and celestial phenomena. Participated in several scientific expeditions to South America, conducting extensive research on various plant species and astronomical observations. Published works that included detailed charts and writings on astronomical studies and botanical classifications. The exploration of the natural history in New Spain was significant to the scientific community of the time.
Continue ReadingJozef Tiso
Served as the President of Slovakia during World War II. Tiso was a significant figure in the establishment of the Slovak State in 1939 under Nazi influence. His regime was characterized by alignment with German policies and included the implementation of anti-Jewish laws. After the war, he was captured, tried for war crimes, and sentenced to death, which was carried out in 1947.
Continue ReadingWilhelm von Grumbach
An adventurer active during the 16th century, engaged in notable expeditions across various regions. Explored the Americas and parts of Africa, documenting experiences in encounters with indigenous peoples and landscapes. Authored works reflecting travels that contributed to the understanding of early modern exploration. His journeys included significant geographical explorations that expanded European knowledge of distant lands.
Continue ReadingGustave Moreau
A prominent figure in the Symbolist movement, this painter is recognized for his elaborate and fantastical works. He studied at the École des Beaux-Arts and displayed his talent at the Salon, gaining significant attention. Themes of mythology and fantasy permeated his paintings, characterized by intricate details and vibrant colors. A key influence on subsequent generations of artists, this individual's work inspired the likes of the Fauves and Surrealists. In addition to painting, he contributed to the academic field as a teacher, leaving a lasting legacy in art education.
Continue Reading