Theory:Doctor Who television discontinuity and plot holes/The Crimson Horror


 * How did Mrs Gillyflower create such advanced technology (Rockets, Presevation chambers) with 1893 technology? Sure its stated she's a genius (a Chemistry genius though) but isn't it a bit stretching it she can make things that are decades ahead of the time?
 * How did Stax get the top of the tower so quickly?
 * If it was really Gillyflower who experimented on her daughter causing her go blind, not her drunk husband as she claimed how exactly did she convince Ada?
 * How did Ada get the doctor into the secret room without anyone noticing? And keep him for so long without anyone finding out?
 * How long has Gillyflower been planning this? To build a building and a town it must have taken years, and to set it up to her specifications must have taken a long time, plus she already has enough survivors to quickly skip to the end, but everyone treats Sweetville as if its a new thing.