|
Gladys Kathleen Parkin
Gladys Kathleen Parkin (September 27, 1900 – August 3, 1990) was one of the earliest and youngest women to obtain a first-class government-issued radio license. Career Parkin was born in Bolinas, California, at the Flagstaff Hotel owned by her parents, John Parkin and Hannah Marie Bennett Parkin. The family relocated to San Rafael, California before the 1906 San Francisco earthquake destroyed the property. Parkin became interested in wireless telegraphy at age 5, and operated an amateur wireless station in her home in San Rafael for six years with her brother, John Parkin. Theirs was one of the first wireless stations in California. On April 13, 1916, while a fifteen-year-old high school student at the Dominican College in San Rafael, she obtained a first-class commercial radio operator's license from the United States Government with the call sign 6SO. The license entitled her to operate any grade of wireless station and to secure employment on vessels. She was the younge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marin County, California
Marin County is a county located in the northwestern part of the San Francisco Bay Area of the U.S. state of California. As of the 2020 census, the population was 262,231. Its county seat and largest city is San Rafael. Marin County is across the Golden Gate Bridge from San Francisco, and is included in the San Francisco–Oakland–Berkeley, CA Metropolitan Statistical Area. Marin County's natural sites include the Muir Woods redwood forest, the Marin Headlands, Stinson Beach, the Point Reyes National Seashore, and Mount Tamalpais. As of 2019, Marin County had the sixth highest income per capita of all U.S. counties, at $141,735. The county is governed by the Marin County Board of Supervisors. The Marin County Civic Center was designed by Frank Lloyd Wright and draws thousands of visitors a year to guided tours of its arch and atrium design. In 1994, a new county jail facility was embedded into the hillside nearby. The United States' oldest cross country running event ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spark-gap Transmitter
A spark-gap transmitter is an obsolete type of radio transmitter which generates radio waves by means of an electric spark."Radio Transmitters, Early" in Spark-gap transmitters were the first type of radio transmitter, and were the main type used during the wireless telegraphy or "spark" era, the first three decades of radio, from 1887 to the end of World War I. German physicist Heinrich Hertz built the first experimental spark-gap transmitters in 1887, with which he proved the existence of radio waves and studied their properties. A fundamental limitation of spark-gap transmitters is that they generate a series of brief transient pulses of radio waves called damped waves; they are unable to produce the continuous waves used to carry audio (sound) in modern AM or FM radio transmission. So spark-gap transmitters could not transmit audio, and instead transmitted information by radiotelegraphy; the operator switched the transmitter on and off with a telegraph key, creating puls ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
People From Bolinas, California
A person ( : people) is a being that has certain capacities or attributes such as reason, morality, consciousness or self-consciousness, and being a part of a culturally established form of social relations such as kinship, ownership of property, or legal responsibility. The defining features of personhood and, consequently, what makes a person count as a person, differ widely among cultures and contexts. In addition to the question of personhood, of what makes a being count as a person to begin with, there are further questions about personal identity and self: both about what makes any particular person that particular person instead of another, and about what makes a person at one time the same person as they were or will be at another time despite any intervening changes. The plural form "people" is often used to refer to an entire nation or ethnic group (as in "a people"), and this was the original meaning of the word; it subsequently acquired its use as a plural form of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Radio In The United States
Radio broadcasting in the United States has been used since the early 1920s to distribute news and entertainment to a national audience. In 1923, 1 percent of U.S. households owned at least one radio receiver, while a majority did by 1931 and 75 percent did by 1937. It was the first electronic "mass medium" technology, and its introduction, along with the subsequent development of sound films, ended the print monopoly of mass media. During the Golden Age of Radio it had a major cultural and financial impact on the country. However, the rise of television broadcasting in the 1950s relegated radio to a secondary status, as much of its programming and audience shifted to the new "sight joined with sound" service. Originally the term "radio" only included transmissions freely received over-the-air, such as the AM and FM bands, now commonly called "terrestrial radio". However, the term has evolved to more broadly refer to streaming audio services in general, including subscription satel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Radio People
American(s) may refer to: * American, something of, from, or related to the United States of America, commonly known as the "United States" or "America" ** Americans, citizens and nationals of the United States of America ** American ancestry, people who self-identify their ancestry as "American" ** American English, the set of varieties of the English language native to the United States ** Native Americans in the United States, indigenous peoples of the United States * American, something of, from, or related to the Americas, also known as "America" ** Indigenous peoples of the Americas * American (word), for analysis and history of the meanings in various contexts Organizations * American Airlines, U.S.-based airline headquartered in Fort Worth, Texas * American Athletic Conference, an American college athletic conference * American Recordings (record label), a record label previously known as Def American * American University, in Washington, D.C. Sports teams Soccer * B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1990 Deaths
Year 199 ( CXCIX) was a common year starting on Monday (link will display the full calendar) of the Julian calendar. At the time, it was sometimes known as year 952 '' Ab urbe condita''. The denomination 199 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * Mesopotamia is partitioned into two Roman provinces divided by the Euphrates, Mesopotamia and Osroene. * Emperor Septimius Severus lays siege to the city-state Hatra in Central-Mesopotamia, but fails to capture the city despite breaching the walls. * Two new legions, I Parthica and III Parthica, are formed as a permanent garrison. China * Battle of Yijing: Chinese warlord Yuan Shao defeats Gongsun Zan. Korea * Geodeung succeeds Suro of Geumgwan Gaya, as king of the Korean kingdom of Gaya (traditional date). By topic Religion * Pope Zephyrinus succeeds Pope Victor I, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1900 Births
Nineteen or 19 may refer to: * 19 (number), the natural number following 18 and preceding 20 * one of the years 19 BC, AD 19, 1919, 2019 Films * ''19'' (film), a 2001 Japanese film * ''Nineteen'' (film), a 1987 science fiction film Music * 19 (band), a Japanese pop music duo Albums * ''19'' (Adele album), 2008 * ''19'', a 2003 album by Alsou * ''19'', a 2006 album by Evan Yo * ''19'', a 2018 album by MHD * ''19'', one half of the double album ''63/19'' by Kool A.D. * '' Number Nineteen'', a 1971 album by American jazz pianist Mal Waldron * ''XIX'' (EP), a 2019 EP by 1the9 Songs * "19" (song), a 1985 song by British musician Paul Hardcastle. * "Nineteen", a song by Bad4Good from the 1992 album '' Refugee'' * "Nineteen", a song by Karma to Burn from the 2001 album ''Almost Heathen''. * "Nineteen" (song), a 2007 song by American singer Billy Ray Cyrus. * "Nineteen", a song by Tegan and Sara from the 2007 album '' The Con''. * "XIX" (song), a 2014 song by S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The AWA Review
The Antique Wireless Association (AWA) is chartered as a non-profit educational organization in New York State and is an IRS 501(c)(3) tax-exempt corporation based in Bloomfield, New York. It was originally established in 1952 by Bruce Kelley, George Batterson, and Linc Cundall for operators and collectors of radio equipment. The association currently has more than 1300 international members. It is a member of the American Association of Museums American(s) may refer to: * American, something of, from, or related to the United States of America, commonly known as the "United States" or "America" ** Americans, citizens and nationals of the United States of America ** American ancestry, pe .... It hosts an annual meeting in August. The association runs the Antique Wireless Museum. The association publishes two journals, the quarterly ''AWA Journal'' (known as the ''Old Timer's Bulletin'' from 1952 until 2004) which focuses on history and preservation efforts, as well as the annual ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electrical Experimenter
''The Electrical Experimenter'' was an American technical science magazine that was published monthly. It was established in May 1913, as the successor to ''Modern Electrics'', a combination of a magazine and mail-order catalog that had been published by Hugo Gernsback starting in 1908. ''The Electrical Experimenter'' continued from May 1913 to July 1920 under that name, focusing on scientific articles about radio, and continued with a broader focus as ''Science and Invention'' until August 1931. The magazine was edited by Hugo Gernsback until March 1929, when the Experimenter Publishing empire of Sidney and Hugo Gernsback was forced into bankruptcy; after that date it was edited by Arthur H. Lynch. Under the editorship of Gernsback, it also published some early science fiction; he published several of his own stories in the magazine starting in 1915, and encouraged others through a 1916 editorial arguing that a "real electrical experimenter, worthy of the name" must have ima ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wireless Telegraphy
Wireless telegraphy or radiotelegraphy is transmission of text messages by radio waves, analogous to electrical telegraphy using cables. Before about 1910, the term ''wireless telegraphy'' was also used for other experimental technologies for transmitting telegraph signals without wires. In radiotelegraphy, information is transmitted by pulses of radio waves of two different lengths called "dots" and "dashes", which spell out text messages, usually in Morse code. In a manual system, the sending operator taps on a switch called a telegraph key which turns the transmitter on and off, producing the pulses of radio waves. At the receiver the pulses are audible in the receiver's speaker as beeps, which are translated back to text by an operator who knows Morse code. Radiotelegraphy was the first means of radio communication. The first practical radio transmitters and receivers invented in 1894–1895 by Guglielmo Marconi used radiotelegraphy. It continued to be the only type ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dominican University Of California
Dominican University of California is a private university in San Rafael, California. It was founded in 1890 as Dominican College by the Dominican Sisters of San Rafael. It is one of the oldest universities in California. Dominican is accredited by the Western Association of Schools and Colleges (WASC). More than 60 academic majors, minors and concentrations, including 11 graduate programs are offered with an average class size of 16. In fall 2020, Dominican had 1374 undergraduate students, including 354 transfer students. Ninety-one percent of students are from California, 6% are from other states and 3% from other nations. In fall 2020, 100% of incoming first-year students received financial aid, 68% identify as ethnically diverse and 23% are the first in their family to attend college. In 2019, Dominican University of California introduced a Test-Optional Policy, allowing first-year students applying for admission to have the option to submit SAT or ACT scores, beginning with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Francisco Chronicle
The ''San Francisco Chronicle'' is a newspaper serving primarily the San Francisco Bay Area of Northern California. It was founded in 1865 as ''The Daily Dramatic Chronicle'' by teenage brothers Charles de Young and Michael H. de Young. The paper is owned by the Hearst Corporation, which bought it from the de Young family in 2000. It is the only major daily paper covering the city and county of San Francisco. The paper benefited from the growth of San Francisco and had the largest newspaper circulation on the West Coast of the United States by 1880. Like other newspapers, it experienced a rapid fall in circulation in the early 21st century and was ranked 18th nationally by circulation in the first quarter of 2021. In 1994, the newspaper launched the SFGATE website, with a soft launch in March and official launch November 3, 1994, including both content from the newspaper and other sources. "The Gate" as it was known at launch was the first large market newspaper website in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
_1938.jpg "Click for more on -> People From Bolinas, California")
.jpg "Click for more on -> History Of Radio In The United States")
