One could also argue that a coaster is a transducer of sorts. It converts chemical energy into sound (screams of passengers) and is also a substance-free emetic

One could also argue that a coaster is a transducer of sorts. It converts chemical energy into sound (screams of passengers) and is also a substance-free emetic [1]. When i was young my siblings and I were riding a low/mid intensity coaster. My brother and I are smiling and screaming, and we look at momentarily at some point backwards a couple of cars and we see our sister, looking completely unamused, staring indifferently out into the horizon. No smile, no frown. She seems like normal person now. But what does that say about a person!? Maybe it was an 8-10 year old power move. 1. https://en.m.wikipedia.org/wiki/Vomiting#Emetics https://en.m.wikipedia.org/wiki/Vomiting#Emetics