http://en.wikipedia.org/wiki/Supercavitation
<<Supercavitation is the use of cavitation effects to create a large bubble of gas inside a liquid, allowing an object to travel at great speed through the liquid by being wholly enveloped by the bubble. The cavity (i.e., the bubble) reduces the drag on the object and precisely this makes supercavitation an attractive technology: drag is normally about 1,000 times greater in water than in air.>> Received on Sun Mar 12 01:12:00 2006
This archive was generated by hypermail 2.1.8 : Tue Mar 09 2010 - 00:21:13 EST