Lee de Forest
Inventor of the audion tube
Born
August 26th, 1873
151 years ago
Died
June 30th, 1961
63 years ago — 87 years old
Category
Scientists & Innovators
Country
United States
Links & References
An American inventor contributed significantly to the development of early electronic communication. De Forest invented the audion tube in 1906, which was a vital component in the evolution of radio technology and amplification. This invention enabled the first step towards the development of modern electronics, including televisions and radios. De Forest also held over 300 patents and was a member of various technical societies. He actively participated in promoting broadcasting and was involved in several early radio stations. Throughout his career, he faced various challenges, including legal disputes over patent rights, impacting his financial standing and reputation in the industry. Nevertheless, his contributions laid the foundation for future advancements in electronic communication.
Invented the audion tube in 1906
Held over 300 patents
Participated in the establishment of early radio stations
Other People Born on August 26th
Elisha Williams
Served as a minister in the New England colonial church, contributing to the growth of religious institutions. Acted as a political figure in the Connecticut colony, advocating for the interests of the clergy and the church. Engaged in academic pursuits, holding positions at Yale College and playing a role in early American higher education. Faced conflicts related to the Great Awakening, which influenced religious practices and governance in colonial America.
Continue ReadingCassie Ventura
Born in 1986, a multifaceted career in entertainment includes music, dance, and modeling. Released the self-titled debut album in 2006, featuring the hit single "Me & U," which achieved commercial success. Appeared in the film "Step Up" and the television series "Empire," showcasing talents in both acting and dancing. Worked as a model for various fashion brands and magazines, gaining recognition in the fashion industry.
Continue ReadingArnold Fothergill
Played as a first-class cricketer for Yorkshire from 1873 to 1889. Achieved significant success in batting and bowling, with over 7,000 runs and 300 wickets during his career. Contributed to Yorkshire's dominance in the County Championship. Served as captain for Yorkshire and led the team to victory in multiple matches. Participated in several important matches against teams such as the Australians.
Continue ReadingKaren Spärck Jones
Contributions to information retrieval and natural language processing characterized the career of this English computer scientist. Spárck Jones developed the concept of term frequency-inverse document frequency (TF-IDF), a fundamental technique in text mining and information retrieval. The scholar participated in various academic institutions, fostering research in computational linguistics and contributing to the development of algorithms that enhanced the efficiency of search engines. Throughout her career, she advocated for women in computing, encouraging greater representation and involvement in the field.
Continue ReadingLars Stindl
Started professional career with Karlsruher SC, making a significant impact in the lower leagues. Transferred to Hannover 96, where played a key role in helping the team secure promotion to the Bundesliga. Joined Borussia Mönchengladbach, achieving consistent performances and contributing to multiple top-table finishes. Represented the national team and participated in the 2018 FIFA World Cup.
Continue ReadingTherese Alshammar
A competitive swimmer specializing in freestyle and butterfly events, notable achievements include competing in multiple Olympic Games and long course World Championships. Established numerous records throughout her career. Alshammar participated in the 2000, 2004, 2008, and 2012 Olympics, earning three Olympic medals. Achieved success on the European stage as well, securing gold medals in the European Championships. Known for longevity in the sport, remaining competitive for over a decade.
Continue ReadingOther People Who Died on June 30th
John Quelch
Operated as a pirate in the Caribbean and off the coast of New England during the late 17th century. Captured several vessels while sailing under a privateering commission before turning to piracy. Involved in notable raids, including the capture of the ship 'Mary'. Tried and executed for piracy in Massachusetts, becoming one of the first pirates to be tried in the American colonies. The case highlighted issues surrounding privateering and piracy during that era.
Continue ReadingNepotianus
Ruled as a usurper in Rome during the year 350 AD. After the assassination of the Emperor Constans, claimed the title of emperor, although the reign lasted only a short time. His rule faced immediate opposition from the forces of Constantius II, leading to his eventual defeat. Reportedly associated with the military campaign that attempted to assert control over the western provinces of the Roman Empire. Little is known about his actions prior to his ascendance to power, and the details surrounding his rule and downfall remain scarce in historical records.
Continue ReadingCharles J. Guiteau
Guiteau was an American lawyer and preacher who assassinated President James A. Garfield in 1881. Motivated by a belief that he played a crucial role in Garfield's election, Guiteau shot the president at a train station in Washington, D.C. Following the assassination, he was arrested and tried for murder. His trial became a highly publicized event, drawing significant media attention. Guiteau was found guilty and sentenced to death, ultimately being executed by hanging in 1882.
Continue ReadingChico Xavier
A prominent spiritual medium and philanthropist, this individual played a significant role in the dissemination of Spiritism in Brazil. Traditionally aligned with the teachings of Allan Kardec, extensive writings included over 400 books, many of which were attributed to spiritual beings. Engaging in charitable works, this person contributed to various social causes throughout life, focused on the well-being of the less fortunate. The impact of these contributions resonated deeply within Brazilian society.
Continue ReadingGeorgy Beregovoy
A Ukrainian-Russian general and pilot achieved the rank of major general in the Soviet Air Force. Initially trained as a pilot during World War II, worked as a test pilot post-war. In 1968, commanded the Soyuz 3 mission, successfully docking with the Salyut 1 space station. Over the course of the career, participated in various military and space exploration efforts, gaining recognition for contributions to aerospace advancements. Received multiple awards, including the title of Hero of the Soviet Union.
Continue ReadingAlcide d'Orbigny
A prominent zoologist, palaeontologist, and geologist, contributions spanned the study of Cephalopoda and fossil mollusks. Conducted extensive fieldwork across South America, classifying numerous species and geological formations. Developed the concept of biological provinces based on regional fauna and flora, influencing future biogeography. Authored significant works, including 'Paléontologie Française,' detailing fossiliferous formations in France.
Continue Reading