[Intro jingle] "The Univeristy of Chicago"
"Resonant Frequency Bottle Experiment"
"No sound is heard"
A woman blows silently, and nods
"Air through an empty bottle"
The woman picks up a bottle, smiling, and brings it to her lips.
["A" note below Middle C] "220 hz" appears as she blows in it.
She smiles and puts down the bottle. [clunk of the bottle on the table]
"Same bottle half filled with water"
The woman picks up the bottle.
[higher note] "316 hz" appears as she blows in it.
She puts down the bottle and sits back. [clunk of the bottle on the table]
"Same bottle filled to the top with water."
The woman picks up the bottle.
"624 hz" appears as she blows in it. [Still higher note]
She puts down the bottle.
[Outro jingle] "The University of Chicago"
"© 2014 The University of Chicago"