28. Waves

Simulations: 
28.1. Diffraction
28.2. Group Velocity
28.3. Huygens
28.4. Lissajou
28.5. Longitudinal Transverse
28.6. Microwaves Youngs Slits
28.7. Red Shift
28.8. Reflection Transmission
28.9. Ripple Tank
28.10. Single Slit Diffraction
28.11. Slinky
28.12. Standing Microwaves
28.13. Stationary Waves
28.14. Water Diffraction
28.15. Wave Interference
28.16. Wave on a String
28.17. Wave Speed
28.18. Youngs Slits