So, what happens to waves in a continuously
stratified environment where the density changes
gradually ? Let's try using salt to change the
density of water to make it continuously stratified,
and make some waves. This photo is a side
view of waves caused by hanging a cylinder
sideways in stratified water and causing it to
oscillate. Light and dark areas show the
"fluctuation" in the water's density,
making the waves' pattern visible.
The unusual thing about these waves is that they
are only
transmitted at certain
angles.
The waves are only transmitted in an "X"
pattern from their source.
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