Valdemar Poulsen - Quiz
A) Phonograph B) Radiophone C) Telegraphone D) Wiregraph
A) Vienna B) Paris C) Stockholm D) Copenhagen
A) University professor B) Engineer C) Inventor D) Supreme Court judge
A) University of Paris B) Royal Institute of Technology C) Technical University of Denmark D) University of Copenhagen
A) Spark-gap transmitter B) Crystal radio C) Vacuum-tube transmitter D) Poulsen arc
A) Jonas Nicolai B) Franz Josef C) Peder Oluf Pedersen D) Rebekka Magdalene
A) Exposition Universelle in Paris B) International Radio Conference C) Copenhagen Technical Exhibition D) World's Fair in Chicago
A) Peder Oluf Pedersen B) The King of Denmark C) The President of France D) Emperor Franz Josef of Austria
A) Lack of electronic amplification B) Too much competition C) Poor sound quality D) The invention was illegal
A) 1869 B) 1898 C) 1900 D) 1942
A) 1907 B) 1903 C) 1908 D) 1910
A) Ernst Alexanderson B) William Duddell C) Lee de Forest D) Einar Dessau
A) Helium B) Oxygen C) Nitrogen D) Hydrogen
A) Transverse magnetic field B) Variable thermal field C) Static gravitational field D) Longitudinal electric field
A) Spark-gap transmitters B) Vacuum tubes C) Mechanical switches D) Chemical batteries
A) Ejerg and Lyngby B) Lyngby and Newcastle C) Berlin and Copenhagen D) Los Angeles and San Francisco
A) 295 miles B) 215 miles C) 100 miles D) 145 miles
A) 5 kilowatts B) 3 kilowatts C) 12 kilowatts D) 100 kilowatts
A) Western Union B) Federal Telegraph Company C) Marconi Company D) General Electric
A) Amplitude modulation B) Digital encryption C) Frequency hopping D) Pulse code modulation
A) Ernst Alexanderson B) William Duddell C) Einar Dessau D) Lee de Forest
A) Spark-gap generator B) Audion tube C) Alexanderson alternator D) Arc transmitter
A) Mid 1930s B) Early 1950s C) Early 1920s D) Late 1900s
A) Singing arcs B) Shortwave transmitters C) Alexanderson alternators D) Spark-gap systems
A) 1923 B) 1942 C) 1907 D) 1894
A) 1907 B) 1923 C) 1921 D) 1942
A) Frederikke Marie Rasmussen B) Peder Severin Krøyer C) Christian Henrik Otto D) Asta Stoltz Nielsen
A) Geologist B) Engineer C) Physicist D) Artist
A) Frederiksborg B) Copenhagen C) Leipzig D) Gentofte
A) 1969 B) 1939 C) 1942 D) 1993
A) Gentofte Cemetery B) Leipzig University C) Landemærket 3 D) Frederiksborg Castle
A) Danish Academy of Technical Sciences B) Danish government C) Swedish Institute for Engineering Research D) Royal Danish Society for Science
A) 6 August B) 10 December C) 1 January D) 23 November
A) 1969 B) 1942 C) 1907 D) 1939
A) 1993 B) 1942 C) 2018 D) 1939
A) Frederiksborg Castle B) Gentofte Cemetery C) University of Leipzig D) Landemærket 3
A) Poulsen's burial site B) Poulsen's wedding C) Poulsen's birthplace D) The location of his laboratory
A) 1904 B) 1969 C) 1043 D) 1942
A) 149th anniversary B) 150th anniversary C) Centennial D) 50th anniversary
A) 1907 B) 1942 C) 1969 D) 2018
A) 23 November 2018 B) 1 January 1969 C) 6 August 1942 D) 23 November 1939 |
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