Josef Stefan
Physicist known for Stefan-Boltzmann Law
Physicist known for Stefan-Boltzmann Law
1835
191 years ago
Scientists & Innovators
Slovenia
Contributed significantly to physics and mathematics, particularly in thermodynamics and heat transfer. Developed the Stefan-Boltzmann law, which describes the power radiated from a black body in terms of its temperature. Authored several important works that advanced the understanding of physical science in the 19th century. Served as a professor at the University of Graz, influencing future generations of scientists through teaching and research.
Formulated the Stefan-Boltzmann law
Contributed to kinetic theory of gases
Published works in thermodynamics
Austrian mountaineer, geographer, and author participated in the first ascent of the north face of the Eiger in 1938. During World War II, captured by British forces, escaped from a prisoner of war camp in India and traveled to Tibet. In Tibet, lived for several years and became a close associate of the 14th Dalai Lama. Authored several books, with 'Seven Years in Tibet' achieving significant popularity and leading to a film adaptation in 1997. Harrer's explorations in Tibet contributed to western knowledge about the region and its culture.
Continue ReadingServed as Chief Judge of the New York Court of Appeals from 1993 to 2008, becoming the first woman to hold this position. Prior to this role, served as an associate judge on the court starting in 1983. Contributed significantly to the reform of the legal system in New York. Worked as the first female judge on New York's highest court and earned respect for various rulings, particularly in areas regarding civil rights and family law. Advocated for the enhancement of the state's judicial system.
Continue ReadingA significant political figure in Portugal, held the office of Prime Minister twice before becoming the 16th President from 1996 to 2006. Played a crucial role in the Portuguese transition to democracy after the Carnation Revolution in 1974. Advocated for European integration and modernization of Portuguese society. Contributed to Portugal's return to democracy and played an instrumental role in the country's accession to the European Economic Community.
Continue ReadingServed as the 3rd Earl of Salisbury during the late 14th century. Played a significant role in the political landscape of England amidst the Hundred Years' War. Was known for his allegiance to the Lancastrian cause and supported various military campaigns. Participated in notable battles during the conflict, contributing to the ongoing struggles for power in England and France.
Continue ReadingBorn in 1400, held the title of Duke of Savoy and became Antipope as Felix V during the Western Schism. His reign as Duke began in 1416 and expanded territorial influence. He resigned from the papacy in 1449 and returned to the Dukedom, focusing on governance and political stability until his death in 1451.
Continue ReadingAn accomplished American singer rose to fame during the 1940s. Achievements included the chart-topping success of several singles and contributions to big band music. Collaborated with renowned bandleaders and performed with the Jimmy Dorsey Orchestra. Significant hits included 'It's Being Done' and 'Little Things Mean a Lot'. Kallen's style and vocal delivery captured the essence of the era's popular music, leading to a successful solo career that continued into the 1950s.
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