Valdemar Poulsen
Personal
Other names:
Job / Known for: Engineer and inventor of the telegraphone
Left traces: Magnetic recording and radio broadcasting
Born
Date: 1869-11-23
Location: DK Copenhagen
Died
Date: 1942-07-23 (aged 73)
Resting place: DK Gentofte
Death Cause: Cancer
Family
Spouse:
Children:
Parent(s): Jonas Nicolai Johannes Poulsen and Rebekka Magdalene Brandt
QR Code:
Valdemar Poulsen My QR code: Valdemar Poulsen https://DearGone.com/14258
Key Ownner: Not yet supported by key owner
Show More
Rank Users ranking to :
Thanks, you rate star
1 2 3 4 5
Ranking 5.0 1
Fullname NoEnglish

Slogan
The future belongs to those who believe in the beauty of their dreams
About me / Bio:
Valdemar Poulsen was a Danish engineer and inventor who developed the first device for generating continuous radio waves, thus aiding the development of radio broadcasting. He also invented the telegraphone, an electromagnetic phonograph capable of registering human speech by the alternating magnetization of a wire. He applied for a patent on this device, a forerunner of the modern magnetic sound recorder, in 1898. A working model created great interest at the Paris Exposition in 1900. He also obtained an English patent on his adaptation of a "singing arc" for radio purposes. Invented by the Englishman W. Duddell, the singing arc could generate continuous audio waves (hence its name). Poulsen transformed this device so that it could generate radio waves; the arc was formed between a copper cathode (positive terminal) and a carbon anode (negative terminal) in an atmosphere of a hydrocarbon gas and a transverse magnetic field. Subsequent efforts with this device by Poulsen and others made long-wave radio broadcasting possible by 1920. He died of cancer in 1942 and was buried in Gentofte.
Show More

Article for Valdemar Poulsen

Died profile like Valdemar Poulsen

  • Jorgen Ingmann Voice of death
    Jorgen Ingmann
    Age: y/o ()
    Died: DK
  • Sigbjorn Obstfelder Voice of death
    Sigbjorn Obstfelder
    Sigbjørn Obstfelder
    Age: y/o ()
    Died: DK
  • Arne Jacobsen Voice of death
    Arne Jacobsen
    Age: y/o ()
    Died: DK
  • Niels Peter Holbech Voice of death
    Niels Peter Holbech
    Age: y/o ()
    Died: DK
  • Hans Andersen Brendekilde Voice of death
    Hans Andersen Brendekilde
    Hans Andersen Brendekilde
    Age: y/o ()
    Died: DK
  • Ellen Johanne Broe Voice of death
    Ellen Johanne Broe
    Age: y/o ()
    Died: DK
  • Pietro Kobke Krohn Voice of death
    Pietro Kobke Krohn
    Age: y/o ()
    Died: DK
  • Erik Paaske Voice of death
    Erik Paaske
    Age: y/o ()
    Died: DK
  • Jorn Utzon Voice of death
    Jorn Utzon
    Age: y/o ()
    Died: DK
  • Charlotte Norrie Voice of death
    Charlotte Norrie
    Age: y/o ()
    Died: DK
  • Eiler Rasmussen Eilersen Voice of death
    Eiler Rasmussen Eilersen
    Age: y/o ()
    Died: DK
  • Jutta Graae Voice of death
    Jutta Graae
    Age: y/o ()
    Died: DK
Comments:
Add Death Died Social Media

To access this section, register or log in to your account.

Log in / Sign up