Originally Posted by
Clinton1
“the angle the sound is introduced into the material can vary greatly the speed it travels through it, its noted as compressional sound / shear wave sound and plate, these are all dependant on the angles that the sound is induced into the material alsp on the material itself”
Correct.
Here is an experiment that is much simpler than the one beginning to take shape above.
Simply put a long pole into the water at about 60 degrees, then put on the face mask and measure the angle between the waters surface and that of the pole in the water.
Repeat with the pole at 30 degrees.
See how the two angles under the water are far different... (or you can just observe it from outside the water, using the eyeball, but measuring gives a verified result)... now strike the pole's end with a hammer so it vibrates and time the period for the water ripples to appear at both the water surface and at the underwater end of the pole. Replicate for both the 30 and 60 degree pole angles of entry.
The 30 degree pole angle of entry will have a time period greater between ripple at surface and ripple at underwater pole end than for the 60 degree pole entry.
e.g. 30 TD RS - RUPE does not equal 60 TD RS - RUPE thus proving that the angle of the dangle slows the boink of the doink.
This result replicates even when using a bigger hammer.