James M. Sabatier
Natl. Ctr. for Physical Acoust. and Dept. of Phys. and Astron., Univ. of Mississippi, University, MS 38677
The phenomena of ``sonic wind,'' viscous drag, and high ``Q'' in resonant acoustic systems is demonstrated. The first two are the well-known Christmas tree balls and rotating cup demonstration. The third is a large heavy tuning fork which rings for a very long time after being struck.