What?
Not burned, not electrically heated. Chemical interaction. Puff on it, it mixes the chems, and it vaporizes..until used up.
I read it somewhere in some link in the last week. Might have otherwise commented on it.
You know, like mixing acids and bases or something.
For all I know it makes your lungs drop
through your anus, but you probably get a hell of a cloud before you keel over.