Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Stuart_Ballantine> ?p ?o }
- Stuart_Ballantine abstract "Charles Stuart Ballantine (September 22, 1897 – May 7, 1944), better known as Stuart Ballantine, was a noted American inventor.Ballantine was born in the Germantown section of Philadelphia, Pennsylvania. He was an amateur radio enthusiast by 1908 and served as a ship radio operator during the summers of 1913-1915. He was employed in 1916 by H. K. Mulford Company, biochemicists, and in 1917 by the Bell Telephone Company of Pennsylvania.From 1917-1920 Ballantine attended Drexel Institute and worked as a radio expert at the Philadelphia Naval Shipyard, where he led design of the Navy coil-type radio compasses. He discovered the "antenna effect" in such systems and invented the capacity compensator for its control. In 1920-1921 he undertook graduate studies in mathematical physics at Harvard University, then spent a year at the Radio Frequency Laboratories in Boonton, New Jersey, where he worked on radio receivers and made inventions for stabilization of radio-frequency amplifiers via a Wheatstone bridge, linear detection at high signal levels, and automatic volume control. He returned to Harvard 1923-1924 as a John Tyndall scholar in physics.From 1924-1927 Ballantine carried out independent studies of radio propagation in White Haven, Pennsylvania, then was briefly research director at the Radio Frequency Laboratories, and in 1929 collaborated with F. M. Huntoon in studying the effects of high pressure on bacteria. From 1929-1934 he was President of the Boonton Research Laboratories investigating errors in microphones due to diffraction and cavity resonance, and developing new devices including an electrostethoscope, automatic optical recorder for frequency-response measurements, and logarithmic voltmeter. In 1934 he founded Ballantine Laboratories, which he led until his death. There he developed improved techniques for measuring the performance of microphones and loudspeakers, and most notably, the first throat microphone for aircraft pilots.Ballantine held more than 30 patents, and was a Fellow of the American Physical Society, the Acoustical Society of America, and the Institute of Radio Engineers, as well as a member of the American Association for the Advancement of Science and the Franklin Institute. He received the 1931 IEEE Morris N. Liebmann Memorial Award, the 1934 Elliott Cresson Medal of the Franklin Institute, and the Radio Club of America's 1946 Armstrong Medal (posthumously). The Franklin Institute's Stuart Ballantine Medal is named in his honor. Ballantine was president of the Institute of Radio Engineers in 1935.".
- Stuart_Ballantine birthDate "1897-09-22".
- Stuart_Ballantine birthPlace Germantown,_Philadelphia.
- Stuart_Ballantine birthPlace Pennsylvania.
- Stuart_Ballantine birthPlace Philadelphia.
- Stuart_Ballantine birthYear "1897".
- Stuart_Ballantine deathDate "1944-05-07".
- Stuart_Ballantine deathYear "1944".
- Stuart_Ballantine wikiPageExternalLink 01671060.pdf.
- Stuart_Ballantine wikiPageExternalLink 01695017.pdf.
- Stuart_Ballantine wikiPageExternalLink abstract.html?res=F20B15FD3855157B93CAA9178ED85F408485F9.
- Stuart_Ballantine wikiPageExternalLink charles-stewart-ballantine.
- Stuart_Ballantine wikiPageID "14178953".
- Stuart_Ballantine wikiPageLength "4257".
- Stuart_Ballantine wikiPageOutDegree "41".
- Stuart_Ballantine wikiPageRevisionID "669662234".
- Stuart_Ballantine wikiPageWikiLink Acoustical_Society_of_America.
- Stuart_Ballantine wikiPageWikiLink American_Association_for_the_Advancement_of_Science.
- Stuart_Ballantine wikiPageWikiLink American_Physical_Society.
- Stuart_Ballantine wikiPageWikiLink Automatic_gain_control.
- Stuart_Ballantine wikiPageWikiLink Automatic_volume_control.
- Stuart_Ballantine wikiPageWikiLink Bell_Telephone_Company.
- Stuart_Ballantine wikiPageWikiLink Biochemistry.
- Stuart_Ballantine wikiPageWikiLink Boonton,_New_Jersey.
- Stuart_Ballantine wikiPageWikiLink Category:1897_births.
- Stuart_Ballantine wikiPageWikiLink Category:1944_deaths.
- Stuart_Ballantine wikiPageWikiLink Category:Acoustical_engineers.
- Stuart_Ballantine wikiPageWikiLink Category:American_inventors.
- Stuart_Ballantine wikiPageWikiLink Category:Drexel_University_alumni.
- Stuart_Ballantine wikiPageWikiLink Category:Harvard_University_alumni.
- Stuart_Ballantine wikiPageWikiLink Category:People_from_Philadelphia,_Pennsylvania.
- Stuart_Ballantine wikiPageWikiLink Category:Radio_pioneers.
- Stuart_Ballantine wikiPageWikiLink Drexel_Institute.
- Stuart_Ballantine wikiPageWikiLink Drexel_University.
- Stuart_Ballantine wikiPageWikiLink Elliott_Cresson_Medal.
- Stuart_Ballantine wikiPageWikiLink Franklin_Institute.
- Stuart_Ballantine wikiPageWikiLink Germantown,_Philadelphia.
- Stuart_Ballantine wikiPageWikiLink H._K._Mulford_Company.
- Stuart_Ballantine wikiPageWikiLink Harvard_University.
- Stuart_Ballantine wikiPageWikiLink IEEE_Morris_N._Liebmann_Memorial_Award.
- Stuart_Ballantine wikiPageWikiLink Institute_of_Radio_Engineers.
- Stuart_Ballantine wikiPageWikiLink Invention.
- Stuart_Ballantine wikiPageWikiLink John_Tyndall.
- Stuart_Ballantine wikiPageWikiLink Logarithm.
- Stuart_Ballantine wikiPageWikiLink Loudspeaker.
- Stuart_Ballantine wikiPageWikiLink Mathematical_physics.
- Stuart_Ballantine wikiPageWikiLink Microphone.
- Stuart_Ballantine wikiPageWikiLink Pennsylvania.
- Stuart_Ballantine wikiPageWikiLink Philadelphia.
- Stuart_Ballantine wikiPageWikiLink Philadelphia_Naval_Shipyard.
- Stuart_Ballantine wikiPageWikiLink Radio_Club_of_America.
- Stuart_Ballantine wikiPageWikiLink Radio_compass.
- Stuart_Ballantine wikiPageWikiLink Radio_direction_finder.
- Stuart_Ballantine wikiPageWikiLink Stuart_Ballantine_Medal.
- Stuart_Ballantine wikiPageWikiLink Throat_microphone.
- Stuart_Ballantine wikiPageWikiLink United_States.
- Stuart_Ballantine wikiPageWikiLink Voltmeter.
- Stuart_Ballantine wikiPageWikiLink Wheatstone_bridge.
- Stuart_Ballantine wikiPageWikiLink White_Haven,_Pennsylvania.
- Stuart_Ballantine wikiPageWikiLinkText "(Charles) Stuart Ballantine".
- Stuart_Ballantine wikiPageWikiLinkText "Stuart Ballantine".
- Stuart_Ballantine dateOfBirth "1897-09-22".
- Stuart_Ballantine dateOfDeath "1944-05-07".
- Stuart_Ballantine hasPhotoCollection Stuart_Ballantine.
- Stuart_Ballantine name "Ballantine, Charles Stuart".
- Stuart_Ballantine placeOfBirth "Germantown, Philadelphia, Pennsylvania".
- Stuart_Ballantine shortDescription "American radio pioneer".
- Stuart_Ballantine wikiPageUsesTemplate Template:More_footnotes.
- Stuart_Ballantine wikiPageUsesTemplate Template:Persondata.
- Stuart_Ballantine wikiPageUsesTemplate Template:Reflist.
- Stuart_Ballantine description "American radio pioneer".
- Stuart_Ballantine description "American radio pioneer".
- Stuart_Ballantine subject Category:1897_births.
- Stuart_Ballantine subject Category:1944_deaths.
- Stuart_Ballantine subject Category:Acoustical_engineers.
- Stuart_Ballantine subject Category:American_inventors.
- Stuart_Ballantine subject Category:Drexel_University_alumni.
- Stuart_Ballantine subject Category:Harvard_University_alumni.
- Stuart_Ballantine subject Category:People_from_Philadelphia,_Pennsylvania.
- Stuart_Ballantine subject Category:Radio_pioneers.
- Stuart_Ballantine hypernym Ballantine.
- Stuart_Ballantine type Agent.
- Stuart_Ballantine type Article.
- Stuart_Ballantine type Award.
- Stuart_Ballantine type Person.
- Stuart_Ballantine type Acoustic.
- Stuart_Ballantine type Article.
- Stuart_Ballantine type Award.
- Stuart_Ballantine type Dynamic.
- Stuart_Ballantine type Person.
- Stuart_Ballantine type Agent.
- Stuart_Ballantine type NaturalPerson.
- Stuart_Ballantine type Thing.
- Stuart_Ballantine type Q215627.
- Stuart_Ballantine type Q5.
- Stuart_Ballantine type Person.
- Stuart_Ballantine comment "Charles Stuart Ballantine (September 22, 1897 – May 7, 1944), better known as Stuart Ballantine, was a noted American inventor.Ballantine was born in the Germantown section of Philadelphia, Pennsylvania. He was an amateur radio enthusiast by 1908 and served as a ship radio operator during the summers of 1913-1915. He was employed in 1916 by H. K.".
- Stuart_Ballantine label "Stuart Ballantine".
- Stuart_Ballantine sameAs Stuart_Ballantine.
- Stuart_Ballantine sameAs m.03cx0yr.