I was very close on some of these - water treatment facility, gasoline, fuel, EEG, Cat scan (smacked my head on that one - I knew better ), rocket, nuclear energy, toilet, - would you consider any of these as alternative answers? (Especially EEG and water treatment facility.)
EEG, nuclear power and Cat scan are good suggestions. Toilet would have worked. I think just "rocket" is too easy thought because its really the specific Saturn V rocket that enabled the moon landing, not just rockets in general.
Elevator and windows should be added, not to mention airplane as opposed to just "Jet Engine"