Inter: quote-news » year=2007|date=October 30|author=Natalie Angier|title=In Science Classrooms, a Blast of Fresh O 2|work=New York Times|url=http://www.nytimes.com/2007/10/30/science/30angi.html
|passage=1) You fall into a swiftly moving river and are in need of a flotational device.