Historical Events on July 15th, 1940

Day of the Week: Monday

Historical Events

  • 1st betatron placed in operation, Urbana, Il
  • Nazi occupiers seize library of IISG Amsterdam
  • Physicist Donald Kerst becomes the first person to accelerate electrons using electromagnetic induction, reaching energies of 2.3 MeV, when his betatron device (for particle acceleration) becomes operational