How can I make a Bookcase Door?

Scooby-Doo movies became famous for it, spy movies have been known to have them, Batman had one, and yet...
I used to live in Kansas, before I moved to Arizona, and while I was there I visited a place called Science City. It is basically an indoor amusement park with funky gizmos like a hologram of a fist sized diamond behind a painting, and a rocking chair that doubles as a power generator. But the thing that interested me most was a wall that revolved at the center, becoming a door that would lead to another room. I asked some of the employees about it, but it must be a trade secret since they all said they couldn't, or wouldn't tell me. One of them even denied the existence of such a wall! Ever since then, I have seen various recreations like this in spy and mystery movies. I think that this would be the coolest thing ever. You see, when you turn the wall around, one side is a fake bookcase, the other is a blank wall. It turns 180 degrees, then you have to turn it the other way. I want one of those in a cabin that my family is building up in the mountains. Since it would have to be custom built, I would need a very good idea of where to start. Anything in the way of advice, answers, or even speculations anyone could give me would be absolutely great.
Sincerely Yours,

iceng4 years ago
Have a look at some of the ibles on the right side of this page and more
if you search the site.
The third one down is my choice.
( I used to think myself a lone wolf at yor age too ;-)

zelback1 (author)  iceng4 years ago
The problem is that all of those are the ones that open on a hinge. I am trying to figure out how to build one that works like a revolving door with only two sides. Not unlike the 4-sided revolving doors that they have at office buildings and hospital visitor entrances.
iceng zelback14 years ago
Understand only two singing sides rotating around a center shaft......
But you and I are not  mechanical engineers.
Hope someone knows how to make one, good luck searching.
take a good look at the links on the right, marked as related.