Fun graphics

Vibration Animations

https://www.acs.psu.edu/drussell/Demos/waves/wavemotion.html

Dispersion of Flexural Waves

https://www.acs.psu.edu/drussell/Demos/Dispersion/Flexural.html

Waves in a Dispersive Medium

https://www.acs.psu.edu/drussell/Demos/Dispersion/dispersion.html

Oscillation of a Simple Pendulum

https://www.acs.psu.edu/drussell/Demos/Pendulum/Pendulum.html