Comments by "William Cox" (@WildBillCox13) on "Japan’s EUV Failure" video.

  1. Actinic, a property of the actinide series of elements. Actinide/actinoid . . . science is so confusing! https://en.wikipedia.org/wiki/Actinide
    3
  2. EUV =Extreme Ultra-Vviolet.
    3