Saturn Space Hotel: The Mystery of the Missing Plans
You are interviewing Dr Jacqueline Gordon

You then ask, "Do you know what this is?"
"Oh yes," she answers quickly. "It's a part of a plan and between you and me it doesn't look like it will work."
"Ok," you say, "I'll bear that in mind".
"Why doesn't it look like it will work?" you ask curiously.
"Because the symbol modulator is too long and the metallic modulator is too small. Oh, and one last thing, the zigger pipe looks too narrow," she explains.