Each spinning circle is one sine wave. Together, they trace any shape — this is called the Fourier series! More circles = closer to the real shape. 🌀
Try the Wave Builder tab to mix your own waves.

Each coloured line is one sine wave. The white line is their combined sum. Try Frequency to make waves wiggle faster (harmonics!), Amplitude to change height, and Phase to shift the wave left or right. When waves line up they get bigger — when they oppose they cancel out! 🎵

🎯 Wave Challenges! Can you build a specific wave shape using the sliders? Each challenge shows you the orange target wave — your goal is to match it! Read the hint, then jump to the Wave Builder.