Close this message
You've been logged-out from spontex.
Please login and try again
  Login/create an account!


An other one!

Aug. 2, 2010 - With a translation of Lotharius, mansuetus informs you that...
personnages_celebres histoire physique

Magnetism

The first magnetic audio recording dates from 1898.


Details:

The inventor of magnetic recording media is Danish Valdemar Poulsen. He heard himself pronounce the name “Jacob” after recording his voice on a magnetic wire (not yet a tape).

The oldest magnetic recording preserved to date is a speech by Emperor Franz Joseph of Austria broadcasted at the Paris Exposition in 1900. You can listen to it here.

Note that Thomas Edison invented the music disc before Poulsen, but the latter filed a patent for the first answering machine/call recorder in 1899!

Sources:

Rennes academy – Portrait de Valdemar Poulsen (FR)
Wikipedia – Magnetic Storage

Spincredible! - Spitiful.


Native english ?

Spontex needs you to correct grammar in translations. Please login and help in translations validation.
If this translation is not that good, please feel free to add a comment improving it !




There is no comment yet
Please login to post a comment
Another DYK?
DYK list
(or ask Jesus for a random one!)
An other one!

Search in DYK