xx/xx/xx    1 episode 1
  xx/xx/xx    2 episode 2
  xx/xx/xx    3 episode 3
  xx/xx/xx    4 episode 4
  xx/xx/xx    5 episode 5
  xx/xx/xx    6 episode 6
* xx/xx/xx    7 Francis Pettit Smith and Charles Martin Hall
* xx/xx/xx    8 Thomas Alva Edison and Alesandro Volta
* xx/xx/xx    9 Rudolf Diesel and Joseph May
* xx/xx/xx   10 James Watt & Samuel Morse 
* xx/xx/xx   11 Louis Daguerre & the Alves Brothers 
* xx/xx/xx   12 Cunaeus & Elias Howe 
* xx/xx/xx   13 Otto Lilienthal & Rene Laennec 
* xx/xx/xx   14 Henri Becquerel & Edward G Acheson