Sound, light, water & matter waves
Use the electromagnetic spectrum strip for a visual map of radio → gamma. Click a band to open its reference entry. Search below for wave formulas, sound, water waves, and matter waves.
Frequency increases → · Wavelength decreases → · All bands travel at c in vacuum
Select a band on the strip for wavelength, frequency, photon energy, and examples.
Pick a category to browse that group of things. Each card lists what belongs there.
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Select an entry to view details.