Valdemar Poulsen

Valdemar Poulsen was a Danish engineer and inventor who developed a magnetic wire recorder called the telegraphone in 1898.

Summary from Wikipedia (CC BY-SA 4.0) · Dates from Wikidata (CC0)

Who was born first?

• Valdemar Poulsen and Nils Gustaf Dalén were born the same year
• Valdemar Poulsen and Charles Thomson Rees Wilson were born the same year
• Valdemar Poulsen and Élie Cartan were born the same year
• Valdemar Poulsen and Stanisław Wojciechowski were born the same year
• Valdemar Poulsen and Hans Spemann were born the same year

Timeline

1. Charles Thomson Rees WilsonFebruary 14, 1869 – November 15, 1959
2. Élie CartanApril 9, 1869 – May 6, 1951
3. Hans SpemannJune 27, 1869 – September 12, 1941
4. Nils Gustaf DalénNovember 30, 1869 – December 9, 1937
5. Stanisław WojciechowskiMarch 15, 1869 – April 9, 1953
6. Valdemar Poulsen (this page)November 23, 1869 – July 23, 1942

Related

• Albert EinsteinMarch 14, 1879 – April 18, 1955
• Isaac NewtonDecember 25, 1642 – March 20, 1727
• Johann Wolfgang von GoetheAugust 28, 1749 – March 22, 1832
• Galileo GalileiFebruary 15, 1564 – January 8, 1642
• Immanuel KantApril 22, 1724 – February 12, 1804
• René DescartesMarch 31, 1596 – February 11, 1650
• Thomas EdisonFebruary 11, 1847 – October 18, 1931
• Marie CurieNovember 7, 1867 – July 4, 1934