Inventor of radio

• Known For: Armstrong was an accomplished inventor who developed the technology for FM radio. • Born: December 18, 1890 in New York, New York • Parents: John and Emily Armstrong • Died: February 1, 1954 in New York, New York • Education: Columbia University • Awards and Honors: National Inventors Hall of Fame, Institute of Radio Engineers Medal of Honor, French Legion of Honor, Franklin Medal • Spouse: Marion MacInnis (m. 1922-1954) Early Life Armstrong was born in New York City on December 18, 1890, the son of John and Emily Armstrong. His father was an employee of Oxford University Press, while his mother was deeply involved in the Presbyterian Church. When he was still very young Armstrong became afflicted with St. Vitus' Dance—a muscular disorder—which forced him to be home-schooled for two years. Regenerative Circuit The same year he graduated, Armstrong invented the regenerative or feedback circuit. Regeneration amplification worked by feeding a received radio signal through a radio tube 20,000 times per second, increasing the power of the received radio signal and allowing radio broadcasts to have a greater range. In 1914, Armstrong was awarded a patent for this invention. His success, however, was short-lived; the following year another inventor, Lee de Forest, filed several applications for competing patents. De Forest believed that he had developed the regenerative circuit first, as did several other inventors who became involved in the legal dispute that lasted...

Hedy Lamarr was an Austrian-American actress and inventor who pioneered the technology that would one day form the basis for today’s WiFi, GPS, and Bluetooth communication systems. As a natural beauty seen widely on the big screen in films like Samson and Delilah and White Cargo, society has long ignored her inventive genius. Lamarr was originally Hedwig Eva Kiesler, born in Vienna, Austria on November 9 th, 1914 into a well-to-do Jewish family. An only child, Lamarr received a great deal of attention from her father, a bank director and curious man, who inspired her to look at the world with open eyes. He would often take her for long walks where he would discuss the inner-workings of different machines, like the printing press or street cars. These conversations guided Lamarr’s thinking and at only 5 years of age, she could be found taking apart and reassembling her music box to understand how the machine operated. Meanwhile, Lamarr’s mother was a concert pianist and introduced her to the arts, placing her in both ballet and piano lessons from a young age. Lamarr’s brilliant mind was ignored, and her beauty took center stage when she was discovered by director Max Reinhardt at age 16. She studied acting with Reinhardt in Berlin and was in her first small film role by 1930, in a German film called Geld auf der Stra βe (“Money on the Street”). However, it wasn’t until 1932 that Lamarr gained name recognition as an actress for her role in the controversial film, Ecstasy. Au...

Edwin H. Armstrong, in full Edwin Howard Armstrong, (born December 18, 1890, Early life. Armstrong was from a genteel, devoutly Presbyterian family of Manhattan. His father was a publisher and his mother a former schoolteacher. Armstrong was a shy boy interested from childhood in engines, railway trains, and all mechanical contraptions. At age 14, fired by reading of the exploits of In his junior year at Columbia, Armstrong made his first, most regenerative, or feedback, circuit, that suddenly, in the autumn of 1912, brought in signals with a thousandfold amplification, loud enough to be heard across a room. At its highest amplification, he also discovered, the tube’s circuit shifted from being a receiver to being an oscillator, or primary generator, of wireless waves. As a radiowave generator, this circuit is still at the heart of all radio-television broadcasting. Armstrong’s priority was later challenged by This youthful invention that opened the age of electronics had profound effects on Armstrong’s life. It led him, after a stint as an instructor at Get a Britannica Premium subscription and gain access to exclusive content. Invention of In 1933 Armstrong secured four patents on advanced circuits that were to solve this last basic problem. They revealed an entirely new radio system, from transmitter to receiver. Instead of varying the amplitude, or power, of radio waves to carry voice or music, as in all radio before then, the new system varied, or modulated, the waves...

The invention of radio communication was preceded by many decades of establishing theoretical underpinnings, discovery and experimental investigation of The idea that the wires needed for The discovery of In the mid-1890s, building on techniques physicists were using to study electromagnetic waves, By 1910, these various wireless systems had come to be called "radio". Wireless communication theories and methods previous to radio [ ] Hans Christian Ørsted Various scientists proposed that In 1831, Expanding upon a series of experiments by Felix Savary, of a principal discharge in one direction and then several reflex actions backward and forward, each more feeble than the preceding until equilibrium is attained". [ citation needed] This view was also later adopted by Maxwell and the theoretical prediction of electromagnetic waves [ ] Oliver Heaviside Between 1861 and 1865, based on the earlier experimental work of Faraday and other scientists and on his own modification to Ampere's law, Of Maxwell's work, "Imagine [Maxwell's] feelings when the differential equations he had formulated proved to him that electromagnetic fields spread in the form of polarised waves, and at the speed of light! To few men in the world has such an experience been vouchsafed... it took physicists some decades to grasp the full significance of Maxwell's discovery, so bold was the leap that his genius forced upon the conceptions of his fellow-workers." Other physicists were equally impressed with Max...

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When talking about the invention of radio, the first name that comes up is always Guglielmo Marconi, who began experimenting in 1895. While it is true that Marconi was very successful (by 1899 he had established wireless connections between Britain, France, and several prominent islands), the moniker “The Father of Radio” is not one hundred percent true. In fact, the first known occurrence of wireless aerial communication was conducted in the Blue Ridge Mountains just outside of Lynchburg by Dr. Mahlon Loomis in 1866, a full eight years before Marconi was even born. Loomis was a dentist and an inventor for most of his adult life, and unsurprisingly came from a very intellectual family: his father a professor said to be involved with the founding of the American Ephemeris and Nautical Almanac, his grandfather a reverend, and his brothers poets, astronomers, and philosophers. Although Loomis by chance lost the financial backing to gain patents for his discoveries and inventions in radio, Loomis should still be remembered for his contributions to the field. Loomis’s Life Mahlon Loomis was born in Fulton County, NY, on July 20, 1826, to Professor Nathan Loomis and Waite Jenks Barber Loomis. Around 1840, the family relocated to Springfield, Virginia, about twenty miles south of Washington. From 1848 and 1849, Loomis studied dentistry and taught school on the side in a couple of towns in Ohio. Then, between 1848 and 1856, he was practicing dentistry in Virginia and at some point...

The invention of radio communication was preceded by many decades of establishing theoretical underpinnings, discovery and experimental investigation of The idea that the wires needed for The discovery of In the mid-1890s, building on techniques physicists were using to study electromagnetic waves, By 1910, these various wireless systems had come to be called "radio". Wireless communication theories and methods previous to radio [ ] Hans Christian Ørsted Various scientists proposed that In 1831, Expanding upon a series of experiments by Felix Savary, of a principal discharge in one direction and then several reflex actions backward and forward, each more feeble than the preceding until equilibrium is attained". [ citation needed] This view was also later adopted by Maxwell and the theoretical prediction of electromagnetic waves [ ] Oliver Heaviside Between 1861 and 1865, based on the earlier experimental work of Faraday and other scientists and on his own modification to Ampere's law, Of Maxwell's work, "Imagine [Maxwell's] feelings when the differential equations he had formulated proved to him that electromagnetic fields spread in the form of polarised waves, and at the speed of light! To few men in the world has such an experience been vouchsafed... it took physicists some decades to grasp the full significance of Maxwell's discovery, so bold was the leap that his genius forced upon the conceptions of his fellow-workers." Other physicists were equally impressed with Max...

• Known For: Armstrong was an accomplished inventor who developed the technology for FM radio. • Born: December 18, 1890 in New York, New York • Parents: John and Emily Armstrong • Died: February 1, 1954 in New York, New York • Education: Columbia University • Awards and Honors: National Inventors Hall of Fame, Institute of Radio Engineers Medal of Honor, French Legion of Honor, Franklin Medal • Spouse: Marion MacInnis (m. 1922-1954) Early Life Armstrong was born in New York City on December 18, 1890, the son of John and Emily Armstrong. His father was an employee of Oxford University Press, while his mother was deeply involved in the Presbyterian Church. When he was still very young Armstrong became afflicted with St. Vitus' Dance—a muscular disorder—which forced him to be home-schooled for two years. Regenerative Circuit The same year he graduated, Armstrong invented the regenerative or feedback circuit. Regeneration amplification worked by feeding a received radio signal through a radio tube 20,000 times per second, increasing the power of the received radio signal and allowing radio broadcasts to have a greater range. In 1914, Armstrong was awarded a patent for this invention. His success, however, was short-lived; the following year another inventor, Lee de Forest, filed several applications for competing patents. De Forest believed that he had developed the regenerative circuit first, as did several other inventors who became involved in the legal dispute that lasted...

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