Mantis shrimp withstand repeated high-impact forces without structural damage. Researchers discovered the shrimp's clubs feature a protective pattern that controls how stress waves travel through its ...

So-called Rayleigh–Bloch waves can release an enormous amount of energy that can damage technical systems under certain circumstances. They only exist below a precisely defined cut-off frequency; ...

Ultrasound is produced by high ... The frequency of ultrasound is therefore greater than 20,000 hertz. Ultrasound, like audible sounds, is transmitted by means of longitudinal waves.

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For water waves and sound waves the unit hertz is usually good enough but radio and TV waves have such a high frequency that the kilohertz (\(kHz\)) or even the megahertz (\(MHz\)) are better units.

High frequency hearing loss causes problems with ... Frequency is a measure of the number of vibrations a sound wave makes per second. For example, a sound measured at 4,000 Hz vibrates 4,000 ...

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Chaplain, G.J., Hawkins, S.C., Peter, M.A. et al., Acoustic lattice resonances and generalised Rayleigh-Bloch waves. Commun Phys 8, 37 (2025): https://doi.org/10.1038/s42005-025-01950-4 ...

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