People Who Died in 1647
Evangelista Torricelli
A physicist and mathematician contributed significantly to the field of fluid dynamics. Invented the barometer in 1643, which measured atmospheric pressure. Explored the behavior of fluids and produced work on the principles of vacuums. Also made advances in calculus, particularly in relation to volumes of solids of revolution.
Continue ReadingGiovanni Lanfranco
An influential Baroque painter, this artist gained recognition for his dramatic use of light and color. His work often depicted religious themes and he produced significant altarpieces and frescoes. Key works include the 'Assumption of the Virgin' located in the church of San Andrea della Valle in Rome. Collaborated with prominent figures of the Baroque period and influenced the artistic landscape of his time through innovative techniques in chiaroscuro.
Continue ReadingBonaventura Cavalieri
Cavalieri was an Italian mathematician and astronomer, primarily recognized for contributions to geometry. His major work, 'Geometria', introduced a method to calculate volumes of solids using infinitesimals, laying groundwork for calculus. He served as a professor at the University of Bologna, where he influenced the study of mathematics. His innovative approach provided tools for later mathematicians, including tools for understanding areas and volumes. The principle named after him, Cavalieri's Principle, states that two regions with the same height and equal cross-sectional areas at all heights have the same volume. This principle continues to be utilized in various mathematical applications.
Continue ReadingZhang Xianzhong
A prominent rebel leader during the late Ming dynasty, native to China. Led significant uprisings against the ruling dynasty in the 17th century. Established a short-lived kingdom in Sichuan, proclaiming himself as the emperor. His rebellion was part of a larger series of conflicts that characterized the tumultuous period leading to the fall of the Ming dynasty and the rise of the Qing dynasty.
Continue ReadingChristian IV
Served as King of Denmark and Norway from 1588 until death in 1648. Initiated significant architectural projects, including the construction of the Rosenborg Castle and the establishment of the University of Copenhagen. Engaged in military conflicts during the Thirty Years' War, aiming to expand Danish influence in Northern Europe. Promoted trade and established colonies, particularly in the West Indies.
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