1637day.year

Robert Fludd

(1574 - 1637)

English physician, mathematician, and cosmologist

English physician mathematician and cosmologist
Robert Fludd was an English physician, mathematician, and hermetic philosopher notable for his writings on occultism and early modern science.
Born in 1574, Fludd studied at Oxford and became physician-in-ordinary to King James I. He published extensive works on the microcosm and macrocosm, blending alchemy, astrology, and medicine. His treatises sought to reconcile Hermetic philosophy with Christian theology. Fludd engaged in famous debates with Johannes Kepler over the nature of the cosmos. Though criticized by contemporaries for his mystical views, his work influenced both scientific and esoteric traditions. Fludd’s unique fusion of science and mysticism left a lasting mark on 17th-century thought.
1637 Robert Fludd
1682day.year

Juan Caramuel y Lobkowitz

(1606 - 1682)

Spanish mathematician and philosopher

Spanish mathematician and philosopher
Juan Caramuel y Lobkowitz was a Spanish mathematician, philosopher, and theologian noted for his prolific writings on logic, ethics, and early probability.
Born in 1606 in Madrid, Caramuel joined the Premonstratensian order and studied canon law and theology. He published influential works on logic, such as his Logica, and pioneered the use of mathematical notation in philosophy. His ethical treatises addressed moral dilemmas with scholastic rigor, while his interest in decimals foreshadowed modern mathematics. Caramuel taught at universities across Spain and Italy, shaping both religious and secular scholarship. He contributed ideas to early probability theory and defended the use of analytical methods in theology. Caramuel’s interdisciplinary scholarship bridged mathematics, philosophy, and theology in the 17th century.
1682 Juan Caramuel y Lobkowitz
1761day.year

Bernard Forest de Bélidor

(1698 - 1761)

French mathematician and engineer

French mathematician and engineer
French mathematician and engineer known for pioneering work in hydraulics and ballistics.
Born in 1698, he became professor at the French artillery school and authored groundbreaking texts on hydraulics and ballistics. His three-volume 'Architecture hydraulique' (1739) systematically described fluid mechanics and pump design, setting a standard for hydraulic engineering. In 'Le Bombardier français' (1732), he applied mathematical principles to artillery fire, influencing military technology across Europe. De Bélidor's analytical methods brought a new level of precision to applied mechanics, bridging the gap between theoretical mathematics and practical engineering. His work laid the groundwork for modern civil and mechanical engineering practices and inspired future engineers.
1761 Bernard Forest de Bélidor
1811day.year

Peter Simon Pallas

(1741 - 1811)

German zoologist and botanist

German zoologist and botanist
German naturalist and explorer renowned for his extensive studies of the flora and fauna of the Russian Empire.
Peter Simon Pallas was born in Berlin in 1741 and trained in medicine and natural history at the University of Göttingen. Invited by Catherine the Great, he conducted five major expeditions across Siberia and the Russian Far East between 1768 and 1774. His detailed observations led to the description of numerous new species and the publication of 'Reise durch verschiedene Provinzen des russischen Reichs'. Pallas introduced systematic methodology in zoology and botany, cataloguing specimens that enriched European museums. He also made contributions to geology, mineralogy, and ethnography, documenting the region's landscapes and indigenous cultures. Pallas's interdisciplinary approach helped establish the foundations of modern natural sciences in Russia.
1811 Peter Simon Pallas
1882day.year

Joseph Liouville

(1809 - 1882)

French mathematician and academic

French mathematician and academic
French mathematician renowned for his work in number theory, differential equations, and analysis.
Joseph Liouville was born in 1809 in Saint-Omer and became the first professor of mathematics at the University of Liège at just 24. He introduced Liouville's theorem in complex analysis and defined Liouville numbers, opening new directions in transcendental number theory. As director of the Journal de Mathématiques Pures et Appliquées, he supported emerging mathematicians like Henri Poincaré and Karl Weierstrass. His research extended to differential geometry, mathematical physics, and elliptic functions. Liouville’s studies of elastic vibrations and gas kinetics contributed to the scientific understanding of the 19th century. He died in 1882, leaving a profound influence on several branches of mathematics.
1882 Joseph Liouville
1894day.year

Hermann von Helmholtz

(1821 - 1894)

German physician and physicist

German physician and physicist
German physician and physicist whose work spanned physiology, optics, and thermodynamics.
Born in Potsdam in 1821, Hermann von Helmholtz trained as a physician before turning to experimental physics. He invented the ophthalmoscope in 1851, revolutionizing ophthalmology and the study of vision. His formulation of the conservation of energy and development of the first law of thermodynamics unified mechanics, heat, and electromagnetism. Helmholtz conducted pioneering research on the sensation of tone, establishing the field of physiological acoustics with his book 'On the Sensations of Tone'. He also made significant contributions to electrodynamics and chemical thermodynamics, including the concept of Helmholtz free energy. As a professor at institutions in Königsberg, Bonn, and Berlin, he mentored a generation of scientists, cementing his place as a giant of 19th-century science.
1894 Hermann von Helmholtz
1935day.year

Carl Weiss

(1906 - 1935)

American physician

American physician
American physician remembered for assassinating Governor Huey Long in 1935.
Carl Weiss was an American physician from Louisiana, best known for his involvement in the assassination of Governor Huey P. Long. Born in 1906 into a prominent medical family, he practiced medicine in Baton Rouge. On September 8, 1935, Weiss confronted Long at the state capitol and shot him, reportedly defending his father-in-law, a political adversary of Long. Long died the following day, and Weiss was immediately killed by Long's bodyguards. The circumstances of the event remain debated, including the exact number of shots fired. Weiss's act had a profound impact on Louisiana politics and remains a controversial moment in the state's history.
1935 Carl Weiss
1942day.year

Rıza Nur

(1879 - 1942)

Turkish surgeon and politician

Turkish surgeon and politician
Turkish surgeon and politician who served as health minister in the early republic.
Rıza Nur was a Turkish surgeon, writer, and political leader who played a significant role during the late Ottoman Empire and the early Turkish Republic. Born in 1879, he studied medicine in Istanbul and Paris before serving as a battlefield surgeon in the Balkan Wars and World War I. In the 1920s, Nur represented Turkey at the Treaty of Lausanne negotiations and later served as Minister of Public Health. He authored memoirs and scholarly works on Turkish history, law, and politics. His contributions to medicine, literature, and statecraft marked him as a multifaceted figure in Turkey's modernization. Nur died in 1942, leaving behind a diverse intellectual and political legacy.
1942 Rıza Nur
1965day.year

Hermann Staudinger

(1881 - 1965)

German chemist and academic, Nobel Prize laureate

German chemist and academic Nobel Prize laureate
German chemist awarded the Nobel Prize for his pioneering work on macromolecules and the foundation of polymer chemistry.
Born in Worms in 1881, Hermann Staudinger earned his doctorate in chemistry under Nobel laureate Hermann Emil Fischer. In the 1920s, he challenged prevailing beliefs by proposing that polymers were long chains of covalently bonded molecules. His research on natural and synthetic polymers laid the groundwork for advances in plastics, rubber, and biopolymers. Staudinger published seminal works and trained a generation of polymer scientists at the University of Freiburg. Despite initial skepticism, his ideas gained acceptance and revolutionized organic chemistry. He was awarded the Nobel Prize in Chemistry in 1953 for the discovery and characterization of macromolecules. Staudinger's work continues to impact materials science and modern polymer applications.
Hermann Staudinger Nobel Prize
1970day.year

Percy Spencer

(1894 - 1970)

American engineer, invented the microwave oven

American engineer invented the microwave oven
American engineer and inventor whose discovery of microwave cooking led to the development of the first commercial microwave oven.
Born in Howland, Maine, in 1894, Percy Spencer began working at Raytheon as an engineer after serving in the U.S. Navy during World War I. In 1945, while testing a magnetron, he noticed that a chocolate bar in his pocket had melted from microwave exposure. Recognizing the cooking potential, Spencer conducted experiments to heat popcorn and eggs, leading to the first microwave cooking demonstration. He patented the technology and oversaw the introduction of Raytheon's 'Radarange', the first commercial microwave oven, in 1947. Spencer held over 300 patents related to radar and microwave technology, earning him a reputation as a prolific inventor. His innovation revolutionized kitchen appliances and daily cooking habits worldwide. He died in 1970, leaving a legacy of ingenuity and practical invention.
1970 Percy Spencer microwave oven
1980day.year

Willard Libby

(1908 - 1980)

American chemist and academic, Nobel Prize laureate

American chemist and academic Nobel Prize laureate
American chemist who pioneered radiocarbon dating and won the Nobel Prize in Chemistry.
Born in 1908, Willard Libby developed the method of radiocarbon dating in 1949, revolutionizing archaeology and geology. He conducted pivotal research at the University of Chicago and later at UCLA. His technique allowed scientists to determine the age of organic materials with unprecedented accuracy. Libby's contributions earned him the 1960 Nobel Prize in Chemistry. He also advised the U.S. government on nuclear science and played a role in the Manhattan Project. Libby died in 1980, leaving a profound legacy in scientific research and chronology.
1980 Willard Libby Nobel Prize
1981day.year

Hideki Yukawa

(1907 - 1981)

Japanese physicist and academic, Nobel Prize laureate

Japanese physicist and academic Nobel Prize laureate
Japanese theoretical physicist and the first Japanese Nobel laureate, recognized for predicting the meson.
Born in Kyoto in 1907, Hideki Yukawa became the first Japanese citizen to win a Nobel Prize in Physics in 1949. He was acclaimed for his theoretical prediction of the meson, an elementary particle mediating nuclear forces. Yukawa served as a professor at Kyoto University and later at Columbia University. His work laid the foundation for modern particle physics and influenced generations of researchers. He was also instrumental in promoting international scientific cooperation after World War II. Yukawa passed away in 1981, remembered as a pioneer of 20th-century theoretical physics.
Hideki Yukawa Nobel Prize