Abū al-Wafā' Būzjānī
Persian mathematician and astronomer
Born
None
None years ago
Died
July 15th, 998
1026 years ago — None years old
Category
Scientists & Innovators
Country
Iran
Links & References
A Persian mathematician and astronomer contributed significantly to the fields of mathematics and astronomy during the medieval period. Developed advancements in trigonometry, particularly in terms of sine and tangent functions. Implemented the use of sexagesimal fractions, which improved accuracy in calculations. Created accurate astronomical tables and synthesized earlier scientific knowledge, particularly the works of Greek astronomers. His efforts in improving the accuracy of astronomical instruments facilitated advancements in celestial navigation.
Authored the book 'Kitab al-Esti'a'adah'
Developed trigonometric functions using sexagesimal fractions
Created astronomical tables for celestial calculations
Other People Who Died on July 15th
Jean-Antoine Houdon
Born in France in 1741, this sculptor became prominent for creating lifelike busts and statues during the Neoclassical period. Studied at the Royal Academy of Painting and Sculpture and received the Prix de Rome in 1761, which enabled time in Italy for artistic development. Throughout a prolific career, crafted works that depicted historical figures, philosophers, and statesmen. Most renowned statue includes the iconic likeness of George Washington, commissioned by the Virginia legislature. Also contributed to various educational endeavors, influencing the next generation of artists.
Continue ReadingChristine Chubbuck
Worked as a news anchor for WXLT-TV in Sarasota, Florida. Gained attention in 1974 for a tragic on-air incident during a live broadcast. Coverage at that time focused on sensationalist crime news, leading to discussions on media ethics. Held a commitment to serious journalism and explored the challenges within news broadcasting. Her work spurred conversations about mental health and the pressures faced by journalists.
Continue ReadingWan Li
Served as Vice Premier of the People's Republic of China from 1986 to 1988. Played a pivotal role in educational reform and modernization during the late 20th century. Focused on improving higher education and promoting research and development. Involved in various governmental initiatives aimed at economic reform and growth.
Continue ReadingGustavo Díaz Ordaz
Served as the 49th President of Mexico from 1964 to 1970. Focused on modernizing the economy and promoting industrialization. Oversaw significant infrastructure projects and expansions. Managed the nation's response to the 1968 Tlatelolco massacre, which drew international attention and criticism.
Continue ReadingNina Bari
Contributed significantly to the field of topology and functional analysis. Focused on the study of continuity and convergence, making advancements in the understanding of topological spaces. Published numerous research papers that provided insights into functional spaces and additional mathematical theories. Served as an educator, influencing the next generation of mathematicians through teaching and mentoring.
Continue ReadingVasily Tatishchev
Contributed to the development of geography and ethnography in Russia during the 18th century. Played a significant role in the Russian exploration and understanding of the Ural region. Established the first comprehensive outline of the geography of Siberia and the Volga region. Served as a government official and was influential in the administration of newly acquired territories.
Continue Reading