What you said about where you shook your head
Eric M. Jones, Ted Selker, Hyemin Chung · 2007
The MIT Smart Helmet is an ongoing project at the MIT Media Lab that incorporates context-aware technology into a bicycle helmet for the purpose of enhancing rider safety. The following paper is an evaluation of a proposed feature being considered for integration: a location-based notification system that can be operated without the use of the hands.