For existing Technology levels during the 30s, see entries for individual countries.

Transportation Edit



  • 1939 - First helicopter built

Unsorted - Please Help Edit

  • Radar
  • 1931 - Physicist Ernst Ruska of Germany builds first Electron Lens
  • 1933 - Ernst Ruska builds first Electron Microscope
  • 1938 - The first working computer invented by Konrad Zuse of Germany. It is a binary calculator.

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