ISEN-ASTC-L is a service of the Association of Science-Technology Centers Incorporated, a worldwide network of science museums and related institutions. ***************************************************************************** Hello, We have the Exploratorium's "Visible Effects of the Invisible" exhibit component. The patterns of "fountains" we are able to produce do not match the examples shown on the label. In particular, the examples all show standing wave patterns with a node at one and and an antinode at the other end, whereas our tube seems to be producing a node at one end, and behaving somewhat inconsistently at the other end. Can anyone help me figure out why this is happening? Thanks Susan Timberlake Exhibit Developer Museum of Science, Boston *********************************************************************** For information about the Association of Science-Technology Centers and the Informal Science Education Network please visit www.astc.org. Check out the latest case studies and reviews on ExhibitFiles at www.exhibitfiles.org. The ISEN-ASTC-L email list is powered by LISTSERVR software from L-Soft. To learn more, visit http://www.lsoft.com/LISTSERV-powered.html. To remove your e-mail address from the ISEN-ASTC-L list, send the message SIGNOFF ISEN-ASTC-L in the BODY of a message to [log in to unmask]