I've seen some scary videos and "after" photos where someone was turning something on a lathe and the workpiece just exploded. How do I avoid this?
For example, in one exploding bowl video the turner comments that he made the bottom too thin which makes sense but he doesn't go into any detail about how thick it should have been. Is there a quick-and-dirty rule for estimating how thick the bottom and/or sides should be? He also mentions the wood was a little wet but I'm not sure if he's suggesting that was also part of the cause.
Is it common for things to explode on the lathe, and is it more due to operator error or just an understood hazard of turning wood? If I can't do anything to completely prevent it, what rules of thumb can I follow to at least decrease the chances of my workpiece exploding on the lathe?
Also, is there a technical term for this (similar to the term "kickback" in relation to other tools), or is it just called exploding?