Ernst Alexanderson

Engineer and inventor of radio technology

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

Japanese pearl farmer and entrepreneur
Born
January 25th, 1858 167 years ago
Died
September 21st, 1954 70 years ago — 96 years old

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 Reading

Tatiana Golovin

French tennis player and Australian Open quarterfinalist
Born
January 25th, 1988 37 years ago

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 Reading

István Fekete

Hungarian author of children's literature
Born
January 25th, 1900 125 years ago
Died
1970 55 years ago — 70 years old

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 Reading

Shirley Ardell Mason

Psychiatric patient and author
Born
January 25th, 1923 102 years ago
Died
1998 27 years ago — 75 years old

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 Reading

Theodosius Dobzhansky

Geneticist and evolutionary biologist
Born
January 25th, 1900 125 years ago
Died
December 18th, 1975 49 years ago — 75 years old

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 Reading

Corazon Aquino

Filipino politician, 11th President
Born
January 25th, 1933 92 years ago
Died
August 1st, 2009 15 years ago — 76 years old

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