Heinlein was the originator of that. I think it was in Number of the Beast with all the alternate universes. He visits OZ and his spaceship is altered by Ozma so it is bigger on the inside than it is on the outside.
Heinlein was the originator of that. I think it was in Number of the Beast with all the alternate universes. He visits OZ and his spaceship is altered by Ozma so it is bigger on the inside than it is on the outside.