1935 – Edwin Armstrong presents his paper “A Method of Reducing Disturbances in Radio Signaling by a System of Frequency Modulation” to the New York section of the Institute of Radio Engineers.
FM broadcasting is a method of radio broadcasting using frequency modulation (FM) technology. Invented in 1933 by American engineer Edwin Armstrong, it is used worldwide to provide high-fidelity sound over broadcast radio. FM broadcasting is capable of better sound quality than AM broadcasting, the chief competing radio broadcasting technology, so it is used for most music broadcasts. FM radio stations use the VHF frequencies. The term “FM band” describes the frequency band in a given country which is dedicated to FM broadcasting.
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Edwin Howard Armstrong
Edwin Howard Armstrong (December 18, 1890 – January 31, 1954) was an American electrical engineer and inventor, best known for developing FM (frequency modulation) radio and the superheterodyne receiver system. He held 42 patents and received numerous awards, including the first Medal of Honor awarded by the Institute of Radio Engineers (now IEEE), the French Legion of Honor, the 1941 Franklin Medal and the 1942 Edison Medal. He was inducted into the National Inventors Hall of Fame and included in the International Telecommunication Union’s roster of great inventors.
1835 – Cesare Lombroso, Italian criminologist and physician, founded the Italian school of criminology (d. 1909)
Cesare Lombroso (Italian pronunciation: [ˈtʃeːzare lomˈbroːzo; -oːso]; born Ezechia Marco Lombroso; 6 November 1835 – 19 October 1909), was an Italian criminologist and physician, founder of the Italian School of Positivist Criminology, often referred to as the father of criminology. Lombroso rejected the established classical school, which held that crime was a characteristic trait of human nature. Instead, using concepts drawn from physiognomy, degeneration theory, psychiatry and Social Darwinism, Lombroso’s theory of anthropological criminology essentially stated that criminality was inherited, and that someone “born criminal” could be identified by physical (congenital) defects, which confirmed a criminal as savage or atavistic. These theories do not have widespread support by scientists in Western countries.
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By Gary Price: Reference: “Repaired and Digitized World War I Illinois National Guard Maps Now Available Online”
Secretary of State and State Archivist Jesse White today announced that in commemoration of the 100th anniversary of America’s participation in World War I, the Illinois State Archives has repaired and digitized 57 maps used by the Illinois National Guard during the war.
Airmen Celebrate National American Indian Heritage Month
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Monroe Washington: Wayside Chapel
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Interesting question.
Helmets were issued to most attendee’s of the University of Southeast Asia 2-year program (aka Viet Nam veterans)
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GoPro Alternative?
$1,200?
wikimedia
- Wikimedia Commons picture of the day for June 2 June 2, 2023Picture of the day Ascent to the steeple of the St. Viktor Church, Dülmen, North Rhine-Westphalia, Germany
- Wikimedia Commons picture of the day for June 1 June 1, 2023Picture of the day Aerial view of the Victoria Falls of the Zambezi River, border between Zambia (left side) and Zimbabwe (right side). The Victoria Falls is the largest sheet of falling water in the world based on its combined width of 1,708 metres (5,604 ft) and height of 108 metres (354 ft).
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