-Stimulating sallivation by electrically activating the parotid gland
-Making people trip over themselves by stimulating the inner ear with hot water (caloric vestibular testing)
Alright /sci/, I need to tun this one through you.
I need to design a demonstration about something cool you can do with the human body for some highschool classes. More priority for getting them interested in the subject than for actual learning value. Can you tell me if you think of anything? Those two up there are the ones I've planned up until now.