It's fun and informative! How easier to submit a composite material (4 SIFCO)

So the question is: what is the difference between harmonic and sine wave?

Here - the calculation for engineers:



In my opinion, obviously. But not for everyone. For Dummies suit another explanation.
It - sinusoidal oscillations:



It - harmonic oscillations:


And this is - a complicated process oscillations consisting of both types of motion: sinusoidal and harmonic: