We've created this Forum Thread with some workarounds and advice to assist you in publishing you ebook.
Writer's Challenge #6: Descriptions
This one comes from an essay by Richard Feynman. You know the shape of a car's crankshaft, right? If not, you can google it.
Now... Try to describe that shape or that shaft without using the word "crankshaft."
Extra points if it doesn't sound like a technical manual.