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Waves
Ripples, sound and resonance — one set of ideas that describes every wave there is.
8 lessons4 chapters~3hno sign-up
Ripples, sound and resonance — one set of ideas that describes every wave there is.
8 lessons4 chapters~3hno sign-up
Every wave — light, sound, ripples — is captured by the same few numbers: amplitude, wavelength, frequency, and the speed that ties them together.
When waves meet each other and obstacles they overlap, bend, and cancel — the effects behind noise-cancelling headphones and the colours on a CD.
Sound is a pressure wave you can hear — and its pitch shifts when the source moves, from a passing siren to a distant star.
Trap a wave between two ends and it locks into standing patterns — the physics of every instrument, and the resonance that can shake a bridge apart.