Thomas Midgley Jr.
Chemist and engineer; inventor of leaded gasoline
Chemist and engineer; inventor of leaded gasoline
Scientists & Innovators
United States
Contributed significantly to chemistry and engineering as an American chemist and engineer. Developed leaded gasoline in the 1920s, which was widely used as a fuel to reduce engine knocking. Later, invented chlorofluorocarbons (CFCs) for refrigeration and air conditioning, which became widespread due to their efficiency. The environmental impacts of these inventions were recognized later, leading to significant changes in policies and practices regarding fuel and refrigerants.
Invented leaded gasoline
Developed chlorofluorocarbons (CFCs)
An astronomer and physicist focused on high-energy astrophysics. Contributed to the understanding of black holes and cosmic radio sources. Served as a professor at the University of Cambridge and as a director of the Institute of Astronomy. Authored several significant publications and texts on astrophysics, particularly emphasizing the role of black holes in the universe.
Continue ReadingAn English academic and politician served as Chancellor of the Duchy of Lancaster from 1970 to 1974. St John-Stevas was a member of the Conservative Party and represented the Chelmsford constituency in the House of Commons from 1950 to 1974. In addition to his political career, held various academic roles, including being a professor. St John-Stevas was instrumental in promoting arts and education during his tenure in government and was involved in legislative reforms that affected the arts sector.
Continue ReadingInitially worked in Italy before moving to the United States, where a successful career in opera and Broadway evolved. Gained notable acclaim for performances in productions such as 'South Pacific.' Also achieved recognition as a recording artist, contributing to the popularity of operatic music in American culture during the mid-20th century.
Continue ReadingServed as the Gonfaloniere of Florence from 1502 to 1512, overseeing the city's administration and military matters. Implemented reforms aimed at strengthening the republican system during a tumultuous period in Florentine politics. Fostered cultural developments that aligned with the Renaissance ethos, providing support to artists and intellectuals. Engaged in diplomatic efforts, striving to maintain Florence's independence amidst competition with neighboring states and the influence of the Papacy.
Continue ReadingA Nicaraguan rebel leader opposed U.S. military intervention in Nicaragua during the 1920s and 1930s. Founded the Sandinista National Liberation Front, which became a key political force in Nicaragua. Sandino's guerrilla warfare strategies inspired many leftist movements across Latin America. He emphasized national sovereignty and social justice. Assassinated in 1934, his legacy continued to influence Nicaraguan politics and revolutionary movements.
Continue ReadingPlayed as a defenseman in the National Hockey League (NHL) for multiple teams including the New York Rangers, Los Angeles Kings, and Buffalo Sabres. Transitioned to coaching after retirement from professional play, contributing to various junior and minor league teams. Participated in a total of over 700 NHL games during a career spanning more than a decade.
Continue ReadingBorn in Sweden, this celebrated soprano gained prominence in the 19th century for remarkable performances in opera, particularly in roles such as the title character in 'Lucia di Lammermoor'. Recognized for her exceptional vocal ability, she undertook extensive tours in Europe and America, captivating audiences with her distinct style and emotive interpretations. Additionally, she starred in various concerts and was dubbed the 'Swedish Nightingale' due to her immense talent and popularity.
Continue ReadingA physician and author contributed significantly to literature, particularly through works that reflect on life in China during the 20th century. The novel 'A Many-Splendored Thing' gained international recognition and inspired film adaptations. Contributions also included non-fiction works that detailed personal experiences and perspectives on Chinese culture and history. Writings often highlighted themes of love and conflict amid cultural and political upheaval, providing insight into the historical context of China.
Continue ReadingAmerican photographer and academic specialized in color nature photography. Played a significant role in the conservation movement through stunning images that highlighted the beauty of natural landscapes. Published numerous books, including 'In Wildness Is the Preservation of the World' which featured landscapes of the American wilderness and advocated for environmental preservation. Worked closely with notable organizations such as the Sierra Club, helping to promote conservation through visual media.
Continue ReadingBorn in 1903, this French race car driver gained recognition for his success in sports car racing during the mid-20th century. Veyron drove for Bugatti, where he achieved significant victories, including winning the 1939 24 Hours of Le Mans. His exceptional skills behind the wheel contributed to Bugatti's prominence in motorsports. Veyron's accomplishments in racing showcased his talent and expertise in handling high-performance vehicles on challenging tracks.
Continue ReadingA prominent figure in Argentine music, contributed significantly to the tango genre as both a pianist and a composer. Stampone studied under notable instructors and later developed a unique style that blended traditional tango with contemporary elements. His compositions have been performed by various orchestras and artists, enhancing the popularity of tango music. In addition to performing in prestigious venues, Stampone received accolades for his contributions to music throughout his career until his passing in 2022.
Continue ReadingBorn in 1878, this actress gained prominence in the early 20th century, becoming renowned for both her theatrical performances and film roles. Active in Sweden and Norway, her career spanned several decades, highlighting her versatility across different mediums. She worked extensively with her husband, playwright August Strindberg, and appeared in many of his plays. The actress was part of the Stockholm's Dramatic Theatre and performed in productions that brought attention to Strindberg's works.
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