Haldan Keffer Hartline
Physiologist, Nobel Prize in Physiology
Physiologist, Nobel Prize in Physiology
Scientists & Innovators
United States
A notable physiologist and academic, contributions focused on the physiology of the visual system. Conducted pioneering research on the function of the retina and the mechanisms of vision. Received the Nobel Prize in Physiology or Medicine in 1967 for work on the interactions of photoreceptor cells, specifically studying how light influences electrical signals in the retina. Served on the faculty at several prestigious institutions and inspired many students through dedicated teaching efforts.
Received the Nobel Prize in Physiology or Medicine in 1967
Conducted research on retinal physiology
This professional footballer played primarily as a central defender. Early career included stints at clubs such as Olhanense and Estoril. Later joined Southampton in 2010, earning promotion to the Premier League. Subsequently played for clubs like Crystal Palace and Lille. His national team career featured participation in UEFA Euro 2016, contributing to Portugal's championship victory. He played a key role in the defense throughout the tournament.
Continue ReadingCompeted in middle-distance running events, primarily the 3000 meters steeplechase. Achieved significant success in international competitions including the World Championships and Olympic Games. Secured a gold medal at the World Championships in 2007, establishing a prominent presence in the sport. Also represented at the 2012 London Olympics, contributing to Kenya's strong tradition in athletics.
Continue ReadingBegan acting career with appearances in television series and films. Gained recognition for the role of Jack Pappas in the series 'The Secret Life of the American Teenager'. Also appeared in 'Star-Crossed' and 'Grey's Anatomy'. Finley has contributed to various television projects showcasing a range of characters. Work in the industry encompasses both drama and science fiction genres.
Continue ReadingAn American actress and singer, gained recognition for roles in theater, television, and film. Most notable role was as the teacher on the PBS children's program 'Reading Rainbow'. Appeared in various productions, showcasing talents in both acting and music. Received significant acclaim for her performances. Contributed to the entertainment industry with a career that spanned several decades.
Continue ReadingAchieved significant success in martial arts, specializing in various disciplines. Competed at a high level in international tournaments, earning recognition for exceptional skills. Secured multiple titles reflecting expertise and dedication to the sport. Actively contributed to the martial arts community through teaching and mentorship, fostering the growth of new practitioners in the field.
Continue ReadingThis individual had a career as a professional footballer in Poland. Played primarily as a forward and is most recognized for time spent at Lech Poznań in the Ekstraklasa. Contributed to the team's performances and was part of the squad during a significant period for the club. Also represented the Polish national team during international competitions. After retirement, involvement in football continued through coaching roles.
Continue ReadingContributed significantly to the fields of astronomy and mathematics. Developed methods for measuring stellar parallax, providing evidence for the heliocentric model and establishing the first accurate metric system of astronomy. Worked on the precise measurement of star positions and created Bessel functions, aiding potential solutions in physical problems. The first person to successfully identify the distance to a star beyond the solar system.
Continue ReadingAn American actress gained recognition for contributions to film and television during the mid-20th century. Often lent voice to various characters, particularly known for voicing the character of Woody Woodpecker in animated series and films. In addition to voice work, appeared in several live-action roles throughout the 1940s and 1950s. Continued to influence animation and voice acting, providing a distinctive and memorable sound that resonated with audiences. Work included collaborations with multiple studios, showcasing versatility in performance styles.
Continue ReadingA mathematician and computer scientist contributed significantly to computer programming. Developed Fortran, the first high-level programming language, which was widely adopted for scientific and engineering applications. Led a team at IBM that created the language, revolutionizing how developers wrote code. Worked on various other projects including functional programming concepts, impacting the evolution of programming languages.
Continue ReadingServed as the fifth president of Tanzania from 2015 until death in 2021. Magufuli was a member of the Chama Cha Mapinduzi party and previously held the position of Minister of Works. Focused on infrastructure development and anti-corruption measures, his administration initiated various public projects, including roads and hospitals. Implemented policies aimed at reducing government spending and increasing revenue through tax collection. His leadership style received mixed reactions, characterized by a crackdown on dissent and media freedom.
Continue ReadingA television host and politician from Brazil, played a significant role in the entertainment industry and politics. Worked as a fashion designer before transitioning into television, hosting shows that showcased fashion and celebrity culture. Served as a federal deputy in Brazil, representing the state of São Paulo, and became the first openly gay politician elected to the Brazilian legislature. His career spanned several decades, during which he became a recognizable figure in both television and political arenas.
Continue ReadingBorn in 1882, a Russian-French painter and set designer contributed significantly to the art and theatrical world. After studying at various art institutions, gained recognition in the 1910s for innovative designs and vivid color palettes. Worked extensively with the Ballets Russes, creating sets and costumes that fused modernism with theatrical elements. Emigrated to France and became part of the Parisian art scene, collaborating with leading artists and designers. Continued to produce work throughout her life until passing in 1949.
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