John Philip Holland
Irish engineer, designer of submarines
Irish engineer, designer of submarines
1840
186 years ago
Scientists & Innovators
Ireland
An engineer from Ireland, focused on submarine design. Developed the first successful submarine, HMS Holland 1, which was commissioned by the British Royal Navy. The design featured a torpedo-launching system, marking a significant advancement in naval warfare technology. Holland's innovations laid the groundwork for future submarine development and influenced naval engineering practices.
Designed HMS Holland 1
Pioneered submarine technology
An influential German author and critic, Mann wrote extensively throughout the 20th century. His literary career was marked by a focus on the themes of morality, aesthetics, and the complexities of human experience. Major works include 'Buddenbrooks', which received critical acclaim and established his reputation as a leading novelist, and 'The Magic Mountain', a significant exploration of time and illness set in a sanatorium. In 1929, he was awarded the Nobel Prize in Literature for his distinguished body of work. Mann's writings often reflected the political and social changes in Germany and Europe, particularly during the rise of fascism.
Continue ReadingA Swiss-American ethnologist, linguist, and politician, served as the fourth Secretary of the Treasury from 1801 to 1814 under Presidents Thomas Jefferson and James Madison. Played a significant role in the founding of the University of New York and the establishment of the first American ethnological society. Contributed to the development of American fiscal policy and worked on reducing the national debt during his tenure. Involved in diplomatic efforts including peace negotiations with Great Britain during the War of 1812 and advocated for Native American rights. Helped foster infrastructure improvements including roads and waterways, promoting economic growth.
Continue ReadingAn influential ice hockey coach in the NHL, served as head coach for several teams, including the Washington Capitals, Detroit Red Wings, and Ottawa Senators. Achieved significant success in coaching and was inducted into the Hockey Hall of Fame in 2002. Contributed to the game not only through coaching but also as a general manager, particularly with the Senators. His tactical approach and leadership qualities shaped many players' careers and team dynamics.
Continue ReadingSignificant contributions to enzymology and biochemistry occurred during an academic career. Achievements included demonstrating that enzymes could be crystallized, providing substantial evidence towards understanding their structure and function. Research focused on urease, leading to insights into enzyme mechanisms. Awarded the Nobel Prize in Chemistry in 1946 for work in this field, recognized for pioneering techniques that advanced scientific understanding of catalysis.
Continue ReadingInvolved in the establishment of Irish self-government, held the position of President of Dáil Éireann during the Irish Civil War. Griffith founded the political party Sinn Féin, advocating for Irish independence. His journalism career included editing the 'United Irishman.' Contributed significantly to the political landscape of Ireland in the early 20th century, promoting a vision of a sovereign nation.
Continue ReadingAn influential American actress, Bacall gained recognition for her distinctive voice and sultry looks. She achieved prominence during the Golden Age of Hollywood, making a remarkable film debut in the classic 'To Have and Have Not' alongside Humphrey Bogart. Bacall's collaborative works with Bogart included 'The Big Sleep' and 'Key Largo'. Over a career spanning several decades, Bacall earned acclaim on both stage and screen, receiving multiple awards including two Academy Awards and a Tony Award. Beyond her film contributions, Bacall was also known for her performances in the Broadway productions such as 'Applause'. Her cinematic legacy and contributions to arts left a lasting impression on Hollywood.
Continue Reading