# data[].attributes.headline
Bending of a wave around a barrier or through an opening.

# data[].attributes.subject
Bending of a wave around a barrier or through an opening.

# data[].attributes.headline
The medium of a wave as it passes from one medium to another because the wave changes speed.

# data[].attributes.subject
The medium of a wave as it passes from one medium to another because the wave changes speed.

# data[].attributes.headline
The transfer of energy by a wave to the medium through which it travels in.

# data[].attributes.subject
The transfer of energy by a wave to the medium through which it travels in.

# data[].attributes.headline
When a wave strike a medium it cannot pass, the wave just bounces off.

# data[].attributes.subject
When a wave strike a medium it cannot pass, the wave just bounces off.