Is Length the only Difference between a Short Story and a Novel?

Today I'm delighted to welcome author Carl R. Moore to my blog. He's touring the internet with his book, filled with the music of intoxicating, scary things. Pondering whether those many things were stories or novellas, I asked him what form of writing he prefers, and here's his answer. 

Short Story, Novella, or Novelby Carl Moore
I think the novel is the form I love the most, and although Slash of Crimson and Other Tales is a collection and my first published paperback, with most of my wr...