Joseph Petzval
Mathematician known for lens theory
Mathematician known for lens theory
1891
135 years ago — 84 years old
Scientists & Innovators
Hungary
A mathematician and physicist, contributed significantly to the field of optics and the development of photographic lenses. Proposed the Petzval lens design in 1840, which greatly enhanced image quality in photography. Worked on the mathematics related to optical systems and made advancements in the understanding of image formation. His work laid foundational principles for modern photography and lens manufacturing.
Developed the Petzval lens design
Contributed to the mathematics of optics
Born in England, a significant figure within the Anglican Church. Served as the Bishop of the Diocese of Keewatin in Canada. Contributed to various theological discussions and writings, influencing religious thought in the regions where active ministry took place. Held formal education in theology, engaging in key ecclesiastical duties during assertive periods of church growth. Engaged with community faith leaders and the broader Anglican community, shaping local and regional church governance.
Continue ReadingA prominent American politician, served as the 48th Speaker of the United States House of Representatives from 1940 to 1961. Played a significant role in shaping major legislation during the mid-20th century. Advocated for key issues such as civil rights, social security, and education. His leadership during critical periods of American history helped navigate the complexities of post-war governance. Participated actively in the Democratic Party, influencing both national policies and local affairs.
Continue ReadingStarted a career in acting during the 1950s. Gained recognition for the role of Mel Sharples in the sitcom 'Alice', which aired from 1976 to 1985. Featured in films such as 'The Terminal Man' and 'The Stone Killer'. Appeared in various guest roles on television shows throughout the 1970s and 1980s. Worked as a voice actor and lent his voice to several animated projects. Continued to be active in acting until the early 1990s.
Continue ReadingBorn in 1964, this individual served as a member of the Finnish Parliament from 2003 to 2011. He was involved in various legislative efforts, particularly focused on information technology and communications. Additionally, he held significant roles within the Finnish Green League, contributing to environmental and digital policy discussions. His career included work as a journalist, where he reported on technology and political issues, and he maintained active participation in national debates concerning digital rights and education.
Continue ReadingAn American actor, comedian, and producer achieved prominence in the mid-20th century. Starred in the television series 'Make Room for Daddy', which ran from 1953 to 1964. Founded St. Jude Children's Research Hospital in 1962, dedicated to treating pediatric catastrophic diseases. Engaged in various philanthropic efforts throughout life, focusing on children's health and welfare.
Continue ReadingA prominent English director and screenwriter, recognized for contributions to film with a distinct narrative style. Directed the Oscar-winning film The English Patient in 1996, which earned nine Academy Awards, including Best Picture and Best Director. Other notable works include The Talented Mr. Ripley and Cold Mountain. Also notable for adapting literary works into successful screenplays. His career included collaborations with various prestigious actors and production teams, establishing a legacy in international cinema.
Continue Reading