Audience members didn't have to wait to experience other Disney technology, such as a a special effects tool called a "big puffer." The crowd filled with many kids and parents gasped and cheered as the massive cannon-like device rolled on stage and began shooting doughnuts of fog across the theater.
The Imagineers triggered a more chilling reaction when they used a special ultrasound speaker that projects sound in a narrow beam. With a young girl from the audience whispering "I am a spooky ghost" into a microphone, they sent her voice out to different parts of the theater.
"We wanted to create an effect that would make it sound like a sound was coming from right inside your head," said special effects expert AsaKalama.
Now, if only they could bring such a show to Future World at Epcot. Wouldn't that be a terrific location for such a demonstration?