Ernst Alexanderson
Engineer and inventor of radio technology
Born
January 25th, 1878
147 years ago
Died
1975
50 years ago — 97 years old
Category
Scientists & Innovators
Country
United States
Links & References
Born in Sweden, Ernst Alexanderson emigrated to the United States where he developed significant advancements in radio technology. He contributed to the creation of the Alexanderson alternator, an early radio transmission device. This invention became pivotal in the evolution of radio communications. His work also included innovations in sound and video broadcasting, leading to improvements in radio and television transmission. Over his career, he acquired over 300 patents, making notable advancements in electrical engineering.
Invented the Alexanderson alternator
Received the Edison Medal in 1929
Contributed to early radio and television technology
Other People Born on January 25th
Mikimoto Kōkichi
Established the first successful pearl cultivation technique in Japan, including the development of cultured pearls. Founded Mikimoto & Co. in 1893, which became a leading luxury brand known for high-quality pearls. Expanded operations internationally and contributed to the growth of the pearl industry. Advocated for sustainable farming practices in pearl cultivation.
Continue ReadingTatiana Golovin
Born in 1988, a professional tennis player represented France. Achieved significant success in the early 2000s. Won titles in singles and doubles on the WTA Tour. Advanced to the quarterfinals of the Australian Open in 2006. Contributed to the French national team in the Fed Cup.
Continue ReadingIstván Fekete
An influential Hungarian author, primarily recognized for contributions to children's literature. Authored over a dozen books that captured the imagination of young readers. Fekete's storytelling often blended elements of nature and adventure, reflecting a deep love for the Hungarian countryside. One of the landmark works includes 'Húsvéti tojás', which remains a staple in Hungarian literature. In addition to writing, Fekete was involved in translating literature from other languages into Hungarian, broadening access to global stories for local readers.
Continue ReadingShirley Ardell Mason
A psychiatric patient underwent treatment for dissociative identity disorder and authored a book that detailed the experience. The book, 'Sybil', published in 1973, outlined the development of multiple personalities as a coping mechanism for childhood trauma. The case drew significant attention to the condition and contributed to discussions regarding mental health and treatment methods. The story was later adapted into a film and a television miniseries, further increasing public awareness of psychological issues.
Continue ReadingTheodosius Dobzhansky
Born in the Russian Empire, a prominent geneticist and evolutionary biologist significantly contributed to the understanding of genetics and evolution. Key work included research on the role of population genetics in evolutionary theory, which helped to synthesize genetics with Darwinian evolution. Spent a major part of the career at Columbia University and published influential papers and books, including 'Genetics and the Origin of Species' in 1937, which became a fundamental text in the field. Contributed to the development of the modern synthesis of evolutionary biology by demonstrating how Mendelian genetics clarified issues in evolutionary theory.
Continue ReadingCorazon Aquino
Served as the 11th President of the Philippines from 1986 to 1992. First female president in Asia, following the People Power Revolution that ousted Ferdinand Marcos. Advocated for democratic reforms and human rights, restoring democratic institutions after years of martial law. Her administration faced challenges such as a coup attempt and economic issues but focused on rebuilding the nation’s political landscape.
Continue Reading