http://www.stevespanglerscience.com/img/cache/bcb9b8db117ee64376aedaf7af3595ca/sound_hose.jpghttp://www.stevespanglerscience.com/img/cache/02268c260f8fff6f7502dd93a20e39be/WSPH-600.jpg
― snoball, Sunday, 3 May 2009 20:44 (fifteen years ago) link