Having a pesky six-year old inside me who often channels his bizarre ideas, I've thought of modeling an exploding grain silo. Unfortunately, I don't have any place to put a set of silos and elevator and all, but it would be cool and a nice emergency scene to model/play with.
When I was a kid (1960s?) I saw one in western Kansas/eastern Colorado about a week after it had happened. My grandfather was a local judge who had to go inspect and certify the damage or something and I went with him. The grain dust inside a half-empty one had exploded - the silo looked like a ruptured firecracker - concrete rumble everywhere. No one had been killed, but Wow! Years later i saw a video of cirvil engineers trying to blow up an old grain elevator. It defied their efforts with dynamite: Grain dust can be a powerful explosive - it tore the one I saw to pieces. .
