This is where two acoustic waves transfer energy to a surface wave by matching its frequency, which in turn causes the surface wave to get larger and more powerful (by increasing its amplitude).

This innovative research demonstrates how lasers can be used to create and detect high-frequency surface acoustic waves using novel materials as a "wave guide." "The material is considered a soft ...

This is the frequency of the wave. Morrison and Cocconi considered how well the ... If a gold nugget is near the surface anywhere in the field, we’ll have a good chance of finding it. We could study ...