Jean-Pierre Christin
Physicist and mathematician, thermometer inventor

Born
1683
342 years ago
Died
January 19th, 1755
270 years ago — 72 years old
Category
Scientists & Innovators
Country
France
Links & References
A French physicist, mathematician, and astronomer contributed to the fields of thermometry and fluid dynamics. Developed the first practical mercury thermometer, which provided more accurate temperature measurements than previous instruments. Contributed to the study of linear scales and thermometric measurement principles. Engaged with the scientific community of the time, exchanging ideas and advancing knowledge in physics and mathematics.
Invented the first practical mercury thermometer
Contributed to the understanding of thermometry
Other People Who Died on January 19th
Henri Victor Regnault
Contributed significantly to the study of thermodynamics and the behavior of gases. Conducted extensive research on the specific heats of various substances. Developed methods for measuring thermal conductivity and demonstrated the laws governing the expansion of gases. Published influential works that laid foundations for modern physics and chemistry. Actively involved in promoting scientific education and aimed to establish systematic approaches in experimental science.
Continue ReadingBettino Craxi
Served as the 45th Prime Minister of Italy from 1983 to 1987. Led the Socialist Party, advocating for economic reforms and increased social welfare. Oversaw a period of significant political change in Italy during the 1980s. Faced challenges related to corruption scandals and economic difficulties. Resided in exile in Tunisia following a conviction in absentia for corruption. Died on January 19, 2000, in Hammamet, Tunisia.
Continue ReadingFrancesca Woodman
An influential photographer, Woodman focused on black-and-white imagery often featuring herself in haunting and ethereal compositions. Woodman studied at the Rhode Island School of Design and became well-known for her experimental use of motion and light. Her work explored themes of identity and the female form, capturing intimate and often surreal moments. Although her life was tragically cut short at a young age, her photography has inspired many and continues to be celebrated in galleries worldwide.
Continue ReadingDenny Doherty
A Canadian singer-songwriter gained prominence as a member of the group The Mamas & The Papas during the 1960s. The group was pivotal in shaping the California sound of the era, blending elements of folk, rock, and pop. Significant hits included 'California Dreamin'' and 'Monday, Monday'. The group's harmonious vocals and distinct style garnered wide acclaim. Doherty also released solo albums and collaborated with various artists throughout his career. His vocal talent contributed to numerous chart-topping singles.
Continue ReadingDiego Laynez
A prominent figure in the early Jesuit order, contributed significantly to the development of Jesuit theology. Participated in the Council of Trent, influencing Catholic doctrines. Served as second Superior General of the Society of Jesus from 1558 until 1565, guiding the order during its formative years. Laynez played a crucial role in establishing the Jesuit educational system, promoting the importance of education in Jesuit missions across Europe and beyond. His writings on theology helped shape Catholic thought during the Reformation.
Continue ReadingPierre-Joseph Proudhon
Born in France in 1809, contributed to political philosophy and economics. Advocated for mutualism and was the first to declare that 'property is theft.' Engaged in various political activities, including opposition to bourgeois capitalism. Wrote extensively, with major works including 'What Is Property?' and 'System of Economic Contradictions.' His ideas laid groundwork for later socialist movements and anarchist theory, influencing various political schools of thought.
Continue Reading