Roller coasters: From dream to extreme

Up the hill and down the drop, hop aboard this episode of Brains On! How do roller coaster designers go from dream to reality? Brothers Ezra and Ottar interview world-renowned roller coaster designer Alan Schilke to find out how he does it. Also -- why do some people feel sick or dizzy after riding them? How do coasters make you feel like you're floating? And don't forget the mystery sound -- it's a real stumper. Even if you're not tall enough for every ride, you're definitely tall enough for this episode.

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