mechanics

What actually is the difference between a ride stop and emergency stop button, particularly on beemers? Emergency stops cut electrical power to the mechanical parts of a ride, yes, but they're not a total electrical isolator. Ride stops also stop mechanical parts moving, but isn't that...

I had a search for the answer to this question, but I couldn't find anything useful. Does anyone know how the reverse freefall mechanism works, or could hazard a guess based on construction pics? I've always used the assumption that golden rule number one for lift hills is that the train should...