The Mudcat Café TM
Thread #81641 Message #1496745
Posted By: gnu
31-May-05 - 02:35 PM
Thread Name: BS: Remember A Grain of Silt?
Subject: RE: BS: Remember A Grain of Silt?
Nay, tis the suspended solid rubbing against the channel surface that actually does the carving. The energy is provided by gravity and the sun.