So the discussion is that sound does not vary according to you dependant on its entry angle
So what do I need to prove your statement is nothing more than what you claim you personally started this thread about
I guees Im going to need a
sound generator
a means of inducing the sound into the material
a set of something to vary the angles its introduced into
something to measure and show the differnt speeds of the sound wave at the different angles
Ahhhhh. What am I going to do.. I know how about I use the sound wave generating thingamaboby that we prepared earlier.
Will post my results along shortly (today)